mirror of
https://github.com/status-im/react-native.git
synced 2025-01-09 17:15:54 +00:00
7df58e23a3
Summary: RCTSurface instance represents React Native-powered piece of a user interface which can be a full-screen app, separate modal view controller, or even small widget. It is called "Surface". The RCTSurface instance is completely thread-safe by design; it can be created on any thread, and any its method can be called from any thread (if the opposite is not mentioned explicitly). The primary goals of the RCTSurface are: - ability to measure and layout the surface in a thread-safe and synchronous manner; - ability to create a UIView instance on demand (later); - ability to communicate the current stage of the surface granularly. Differential Revision: D6202576 fbshipit-source-id: 8e644c87fcaad2b6a9c9304b58384d7192747556
139 lines
4.0 KiB
Objective-C
139 lines
4.0 KiB
Objective-C
/**
|
|
* Copyright (c) 2015-present, Facebook, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under the BSD-style license found in the
|
|
* LICENSE file in the root directory of this source tree. An additional grant
|
|
* of patent rights can be found in the PATENTS file in the same directory.
|
|
*/
|
|
|
|
#import "RCTSurfaceRootShadowView.h"
|
|
|
|
#import <React/RCTUIManagerUtils.h>
|
|
|
|
#import "RCTI18nUtil.h"
|
|
|
|
@implementation RCTSurfaceRootShadowView {
|
|
CGSize _intrinsicSize;
|
|
BOOL _isRendered;
|
|
BOOL _isLaidOut;
|
|
}
|
|
|
|
- (instancetype)init
|
|
{
|
|
if (self = [super init]) {
|
|
self.viewName = @"RCTSurfaceRootView";
|
|
_baseDirection = [[RCTI18nUtil sharedInstance] isRTL] ? YGDirectionRTL : YGDirectionLTR;
|
|
_minimumSize = CGSizeZero;
|
|
_maximumSize = CGSizeMake(INFINITY, INFINITY);
|
|
|
|
self.alignSelf = YGAlignStretch;
|
|
self.flex = 1;
|
|
}
|
|
|
|
return self;
|
|
}
|
|
|
|
- (void)insertReactSubview:(RCTShadowView *)subview atIndex:(NSInteger)atIndex
|
|
{
|
|
[super insertReactSubview:subview atIndex:atIndex];
|
|
if (!_isRendered) {
|
|
[_delegate rootShadowViewDidStartRendering:self];
|
|
_isRendered = YES;
|
|
}
|
|
}
|
|
|
|
- (void)calculateLayoutWithMinimumSize:(CGSize)minimumSize maximumSize:(CGSize)maximimSize
|
|
{
|
|
// Treating `INFINITY` as `YGUndefined` (which equals `NAN`).
|
|
float availableWidth = isinf(maximimSize.width) ? YGUndefined : maximimSize.width;
|
|
float availableHeight = isinf(maximimSize.height) ? YGUndefined : maximimSize.height;
|
|
|
|
self.minWidth = (YGValue){isinf(minimumSize.width) ? YGUndefined : minimumSize.width, YGUnitPoint};
|
|
self.minWidth = (YGValue){isinf(minimumSize.height) ? YGUndefined : minimumSize.height, YGUnitPoint};
|
|
|
|
YGNodeCalculateLayout(self.yogaNode, availableWidth, availableHeight, _baseDirection);
|
|
}
|
|
|
|
- (NSSet<RCTShadowView *> *)collectViewsWithUpdatedFrames
|
|
{
|
|
[self calculateLayoutWithMinimumSize:_minimumSize
|
|
maximumSize:_maximumSize];
|
|
|
|
NSMutableSet<RCTShadowView *> *viewsWithNewFrame = [NSMutableSet set];
|
|
[self applyLayoutNode:self.yogaNode viewsWithNewFrame:viewsWithNewFrame absolutePosition:CGPointZero];
|
|
|
|
self.intrinsicSize = self.frame.size;
|
|
|
|
if (_isRendered && !_isLaidOut) {
|
|
[_delegate rootShadowViewDidStartLayingOut:self];
|
|
_isLaidOut = YES;
|
|
}
|
|
|
|
return viewsWithNewFrame;
|
|
}
|
|
|
|
- (CGSize)sizeThatFitsMinimumSize:(CGSize)minimumSize
|
|
maximumSize:(CGSize)maximumSize
|
|
{
|
|
// Positive case where requested constraind are aready enforced.
|
|
if (CGSizeEqualToSize(minimumSize, _minimumSize) &&
|
|
CGSizeEqualToSize(maximumSize, _maximumSize)) {
|
|
// We stil need to call `calculateLayoutWithMinimumSize:maximumSize`
|
|
// mehtod though.
|
|
[self calculateLayoutWithMinimumSize:_minimumSize
|
|
maximumSize:_maximumSize];
|
|
|
|
YGNodeRef yogaNode = self.yogaNode;
|
|
return CGSizeMake(YGNodeLayoutGetWidth(yogaNode), YGNodeLayoutGetHeight(yogaNode));
|
|
}
|
|
|
|
// Generic case, where requested constraind are different from enforced.
|
|
|
|
// Applying given size constraints.
|
|
[self calculateLayoutWithMinimumSize:minimumSize
|
|
maximumSize:maximumSize];
|
|
|
|
YGNodeRef yogaNode = self.yogaNode;
|
|
CGSize fittingSize =
|
|
CGSizeMake(YGNodeLayoutGetWidth(yogaNode), YGNodeLayoutGetHeight(yogaNode));
|
|
|
|
// Reverting size constraints.
|
|
[self calculateLayoutWithMinimumSize:_minimumSize
|
|
maximumSize:_maximumSize];
|
|
|
|
return CGSizeMake(
|
|
MAX(minimumSize.width, MIN(maximumSize.width, fittingSize.width)),
|
|
MAX(minimumSize.height, MIN(maximumSize.height, fittingSize.height))
|
|
);
|
|
}
|
|
|
|
- (void)setMinimumSize:(CGSize)minimumSize maximumSize:(CGSize)maximumSize
|
|
{
|
|
if (CGSizeEqualToSize(minimumSize, _minimumSize) &&
|
|
CGSizeEqualToSize(maximumSize, _maximumSize)) {
|
|
return;
|
|
}
|
|
|
|
_maximumSize = maximumSize;
|
|
_minimumSize = minimumSize;
|
|
}
|
|
|
|
- (void)setIntrinsicSize:(CGSize)intrinsicSize
|
|
{
|
|
if (CGSizeEqualToSize(_intrinsicSize, intrinsicSize)) {
|
|
return;
|
|
}
|
|
|
|
_intrinsicSize = intrinsicSize;
|
|
|
|
[_delegate rootShadowView:self didChangeIntrinsicSize:intrinsicSize];
|
|
}
|
|
|
|
- (CGSize)intrinsicSize
|
|
{
|
|
return _intrinsicSize;
|
|
}
|
|
|
|
@end
|