107 lines
2.7 KiB
Objective-C
107 lines
2.7 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 "RCTSurfaceRootShadowView.h"
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#import "RCTI18nUtil.h"
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#import "RCTShadowView+Layout.h"
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#import "RCTUIManagerUtils.h"
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@implementation RCTSurfaceRootShadowView {
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CGSize _intrinsicSize;
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BOOL _isRendered;
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BOOL _isLaidOut;
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}
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- (instancetype)init
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{
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if (self = [super init]) {
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self.viewName = @"RCTSurfaceRootView";
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_baseDirection = [[RCTI18nUtil sharedInstance] isRTL] ? YGDirectionRTL : YGDirectionLTR;
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_minimumSize = CGSizeZero;
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_maximumSize = CGSizeMake(CGFLOAT_MAX, CGFLOAT_MAX);
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self.alignSelf = YGAlignStretch;
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self.flex = 1;
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}
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return self;
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}
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- (void)insertReactSubview:(RCTShadowView *)subview atIndex:(NSInteger)atIndex
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{
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[super insertReactSubview:subview atIndex:atIndex];
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if (!_isRendered) {
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[_delegate rootShadowViewDidStartRendering:self];
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_isRendered = YES;
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}
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}
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- (void)calculateLayoutWithMinimumSize:(CGSize)minimumSize maximumSize:(CGSize)maximimSize
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{
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YGNodeRef yogaNode = self.yogaNode;
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YGNodeStyleSetMinWidth(yogaNode, RCTYogaFloatFromCoreGraphicsFloat(maximimSize.width));
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YGNodeStyleSetMinHeight(yogaNode, RCTYogaFloatFromCoreGraphicsFloat(maximimSize.height));
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YGNodeCalculateLayout(
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self.yogaNode,
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RCTYogaFloatFromCoreGraphicsFloat(maximimSize.width),
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RCTYogaFloatFromCoreGraphicsFloat(maximimSize.height),
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_baseDirection
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);
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}
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- (NSSet<RCTShadowView *> *)collectViewsWithUpdatedFrames
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{
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[self calculateLayoutWithMinimumSize:_minimumSize
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maximumSize:_maximumSize];
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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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self.intrinsicSize = self.frame.size;
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if (_isRendered && !_isLaidOut) {
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[_delegate rootShadowViewDidStartLayingOut:self];
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_isLaidOut = YES;
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}
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return viewsWithNewFrame;
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}
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- (void)setMinimumSize:(CGSize)minimumSize maximumSize:(CGSize)maximumSize
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{
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if (CGSizeEqualToSize(minimumSize, _minimumSize) &&
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CGSizeEqualToSize(maximumSize, _maximumSize)) {
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return;
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}
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_maximumSize = maximumSize;
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_minimumSize = minimumSize;
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}
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- (void)setIntrinsicSize:(CGSize)intrinsicSize
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{
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if (CGSizeEqualToSize(_intrinsicSize, intrinsicSize)) {
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return;
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}
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_intrinsicSize = intrinsicSize;
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[_delegate rootShadowView:self didChangeIntrinsicSize:intrinsicSize];
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}
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- (CGSize)intrinsicSize
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{
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return _intrinsicSize;
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}
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@end
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