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702564fb60
Reviewed By: astreet Differential Revision: D4611417 fbshipit-source-id: 2fb0eedffa17f0ec89b601722a1717a72e216b9e
54 lines
1.7 KiB
Objective-C
54 lines
1.7 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import "RCTRootShadowView.h"
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#import "RCTI18nUtil.h"
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@implementation RCTRootShadowView
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/**
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* Init the RCTRootShadowView with RTL status.
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* Returns a RTL CSS layout if isRTL is true (Default is LTR CSS layout).
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*/
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- (instancetype)init
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{
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self = [super init];
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if (self) {
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_baseDirection = [[RCTI18nUtil sharedInstance] isRTL] ? YGDirectionRTL : YGDirectionLTR;
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_availableSize = CGSizeMake(INFINITY, INFINITY);
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}
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return self;
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}
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- (NSSet<RCTShadowView *> *)collectViewsWithUpdatedFrames
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{
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// Treating `INFINITY` as `YGUndefined` (which equals `NAN`).
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float availableWidth = _availableSize.width == INFINITY ? YGUndefined : _availableSize.width;
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float availableHeight = _availableSize.height == INFINITY ? YGUndefined : _availableSize.height;
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YGUnit widthUnit = YGNodeStyleGetWidth(self.yogaNode).unit;
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if (widthUnit == YGUnitUndefined || widthUnit == YGUnitAuto) {
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YGNodeStyleSetWidthPercent(self.yogaNode, 100);
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}
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YGUnit heightUnit = YGNodeStyleGetHeight(self.yogaNode).unit;
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if (heightUnit == YGUnitUndefined || heightUnit == YGUnitAuto) {
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YGNodeStyleSetHeightPercent(self.yogaNode, 100);
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}
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YGNodeCalculateLayout(self.yogaNode, availableWidth, availableHeight, _baseDirection);
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NSMutableSet<RCTShadowView *> *viewsWithNewFrame = [NSMutableSet set];
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[self applyLayoutNode:self.yogaNode viewsWithNewFrame:viewsWithNewFrame absolutePosition:CGPointZero];
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return viewsWithNewFrame;
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}
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@end
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