react-native/React/Views/RCTRootShadowView.m

60 lines
1.6 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 "RCTI18nUtil.h"
#import "RCTRootShadowView.h"
@implementation RCTRootShadowView
/**
* Init the RCTRootShadowView with RTL status.
* Returns a RTL CSS layout if isRTL is true (Default is LTR CSS layout).
*/
- (instancetype)init
{
self = [super init];
if (self) {
if ([[RCTI18nUtil sharedInstance] isRTL]) {
CSSNodeStyleSetDirection(self.cssNode, CSSDirectionRTL);
}
}
return self;
}
- (void)applySizeConstraints
{
switch (_sizeFlexibility) {
case RCTRootViewSizeFlexibilityNone:
break;
case RCTRootViewSizeFlexibilityWidth:
CSSNodeStyleSetWidth(self.cssNode, CSSUndefined);
break;
case RCTRootViewSizeFlexibilityHeight:
CSSNodeStyleSetHeight(self.cssNode, CSSUndefined);
break;
case RCTRootViewSizeFlexibilityWidthAndHeight:
CSSNodeStyleSetWidth(self.cssNode, CSSUndefined);
CSSNodeStyleSetHeight(self.cssNode, CSSUndefined);
break;
}
}
- (NSSet<RCTShadowView *> *)collectViewsWithUpdatedFrames
{
[self applySizeConstraints];
CSSNodeCalculateLayout(self.cssNode, CSSUndefined, CSSUndefined, CSSDirectionInherit);
NSMutableSet<RCTShadowView *> *viewsWithNewFrame = [NSMutableSet set];
[self applyLayoutNode:self.cssNode viewsWithNewFrame:viewsWithNewFrame absolutePosition:CGPointZero];
return viewsWithNewFrame;
}
@end