react-native/React/Views/RCTShadowView+Layout.m

76 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 "RCTShadowView+Layout.h"
#import <yoga/Yoga.h>
#import "RCTAssert.h"
@implementation RCTShadowView (Layout)
#pragma mark - Computed Layout-Inferred Metrics
- (UIEdgeInsets)paddingAsInsets
{
YGNodeRef yogaNode = self.yogaNode;
return (UIEdgeInsets){
RCTCoreGraphicsFloatFromYogaFloat(YGNodeLayoutGetPadding(yogaNode, YGEdgeTop)),
RCTCoreGraphicsFloatFromYogaFloat(YGNodeLayoutGetPadding(yogaNode, YGEdgeLeft)),
RCTCoreGraphicsFloatFromYogaFloat(YGNodeLayoutGetPadding(yogaNode, YGEdgeBottom)),
RCTCoreGraphicsFloatFromYogaFloat(YGNodeLayoutGetPadding(yogaNode, YGEdgeRight))
};
}
- (UIEdgeInsets)borderAsInsets
{
YGNodeRef yogaNode = self.yogaNode;
return (UIEdgeInsets){
RCTCoreGraphicsFloatFromYogaFloat(YGNodeLayoutGetBorder(yogaNode, YGEdgeTop)),
RCTCoreGraphicsFloatFromYogaFloat(YGNodeLayoutGetBorder(yogaNode, YGEdgeLeft)),
RCTCoreGraphicsFloatFromYogaFloat(YGNodeLayoutGetBorder(yogaNode, YGEdgeBottom)),
RCTCoreGraphicsFloatFromYogaFloat(YGNodeLayoutGetBorder(yogaNode, YGEdgeRight))
};
}
- (UIEdgeInsets)compoundInsets
{
UIEdgeInsets borderAsInsets = self.borderAsInsets;
UIEdgeInsets paddingAsInsets = self.paddingAsInsets;
return (UIEdgeInsets){
borderAsInsets.top + paddingAsInsets.top,
borderAsInsets.left + paddingAsInsets.left,
borderAsInsets.bottom + paddingAsInsets.bottom,
borderAsInsets.right + paddingAsInsets.right
};
}
- (CGSize)availableSize
{
return self.layoutMetrics.contentFrame.size;
}
- (CGRect)contentFrame
{
return self.layoutMetrics.contentFrame;
}
#pragma mark - Dirty Propagation Control
- (void)dirtyLayout
{
// The default implementaion does nothing.
}
- (void)clearLayout
{
// The default implementaion does nothing.
}
@end