/* * Copyright (c) Meta Platforms, Inc. and affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. */ #import "RCTWrapperView.h" #import #import @implementation RCTWrapperView { __weak RCTBridge *_bridge; } - (instancetype)initWithBridge:(RCTBridge *)bridge { if (self = [super initWithFrame:CGRectZero]) { _bridge = bridge; __weak __typeof(self) weakSelf = self; _measureBlock = ^(CGSize minimumSize, CGSize maximumSize) { __typeof(self) strongSelf = weakSelf; if (!strongSelf) { return maximumSize; } CGSize size = [strongSelf sizeThatFits:maximumSize]; return CGSizeMake(MAX(size.width, minimumSize.width), MAX(size.height, minimumSize.height)); }; } return self; } #pragma mark - `contentView` - (nullable UIView *)contentView { return self.subviews.firstObject; } - (void)setContentView:(UIView *)contentView { while (self.subviews.firstObject) { [self.subviews.firstObject removeFromSuperview]; } if (!contentView) { return; } [super addSubview:contentView]; contentView.frame = self.bounds; contentView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; contentView.translatesAutoresizingMaskIntoConstraints = YES; } #pragma mark - Layout - (void)setNeedsLayout { [super setNeedsLayout]; [self invalidateIntrinsicContentSize]; } - (void)invalidateIntrinsicContentSize { [super invalidateIntrinsicContentSize]; // Setting `intrinsicContentSize` dirties the Yoga node and // enforce Yoga to call `measure` function (backed to `measureBlock`). [_bridge.uiManager setIntrinsicContentSize:self.intrinsicContentSize forView:self]; } - (CGSize)intrinsicContentSize { return [self sizeThatFits:CGSizeMake(CGFLOAT_MAX, CGFLOAT_MAX)]; } - (CGSize)sizeThatFits:(CGSize)size { UIView *contentView = self.contentView; if (!contentView) { return [super sizeThatFits:size]; } return [contentView sizeThatFits:size]; } @end