64 lines
1.6 KiB
Objective-C
64 lines
1.6 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import "RCTSafeAreaView.h"
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#import <React/RCTBridge.h>
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#import <React/RCTUIManager.h>
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#import "RCTSafeAreaViewLocalData.h"
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@implementation RCTSafeAreaView {
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__weak RCTBridge *_bridge;
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UIEdgeInsets _currentSafeAreaInsets;
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}
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- (instancetype)initWithBridge:(RCTBridge *)bridge
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{
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if (self = [super initWithFrame:CGRectZero]) {
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_bridge = bridge;
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}
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return self;
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}
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RCT_NOT_IMPLEMENTED(- (instancetype)initWithCoder:(NSCoder *)decoder)
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RCT_NOT_IMPLEMENTED(- (instancetype)initWithFrame:(CGRect)frame)
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#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000 /* __IPHONE_11_0 */
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static BOOL UIEdgeInsetsEqualToEdgeInsetsWithThreshold(UIEdgeInsets insets1, UIEdgeInsets insets2, CGFloat threshold) {
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return
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ABS(insets1.left - insets2.left) <= threshold &&
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ABS(insets1.right - insets2.right) <= threshold &&
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ABS(insets1.top - insets2.top) <= threshold &&
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ABS(insets1.bottom - insets2.bottom) <= threshold;
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}
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- (void)safeAreaInsetsDidChange
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{
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if (![self respondsToSelector:@selector(safeAreaInsets)]) {
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return;
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}
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UIEdgeInsets safeAreaInsets = self.safeAreaInsets;
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if (UIEdgeInsetsEqualToEdgeInsetsWithThreshold(safeAreaInsets, _currentSafeAreaInsets, 1.0 / RCTScreenScale())) {
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return;
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}
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_currentSafeAreaInsets = safeAreaInsets;
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RCTSafeAreaViewLocalData *localData =
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[[RCTSafeAreaViewLocalData alloc] initWithInsets:safeAreaInsets];
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[_bridge.uiManager setLocalData:localData forView:self];
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}
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#endif
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@end
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