128 lines
3.6 KiB
Objective-C
128 lines
3.6 KiB
Objective-C
#import "RNCSafeAreaView.h"
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#import <React/RCTBridge.h>
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#import <React/RCTUIManager.h>
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#import "RNCSafeAreaProvider.h"
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#import "RNCSafeAreaUtils.h"
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#import "RNCSafeAreaViewEdges.h"
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#import "RNCSafeAreaViewLocalData.h"
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#import "RNCSafeAreaViewMode.h"
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@implementation RNCSafeAreaView {
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__weak RCTBridge *_bridge;
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UIEdgeInsets _currentSafeAreaInsets;
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RNCSafeAreaViewMode _mode;
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RNCSafeAreaViewEdges _edges;
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__weak RNCSafeAreaProvider *_Nullable _providerView;
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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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// Defaults
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_mode = RNCSafeAreaViewModePadding;
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_edges = RNCSafeAreaViewEdgesMake(
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RNCSafeAreaViewEdgeModeOff, RNCSafeAreaViewEdgeModeOff, RNCSafeAreaViewEdgeModeOff, RNCSafeAreaViewEdgeModeOff);
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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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- (NSString *)description
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{
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NSString *superDescription = [super description];
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// Cutting the last `>` character.
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if (superDescription.length > 0 && [superDescription characterAtIndex:superDescription.length - 1] == '>') {
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superDescription = [superDescription substringToIndex:superDescription.length - 1];
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}
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return [NSString stringWithFormat:@"%@; RNCSafeAreaInsets = %@; appliedRNCSafeAreaInsets = %@>",
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superDescription,
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NSStringFromUIEdgeInsets(_providerView.safeAreaInsets),
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NSStringFromUIEdgeInsets(_currentSafeAreaInsets)];
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}
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- (void)didMoveToWindow
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{
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UIView *previousProviderView = _providerView;
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_providerView = [self findNearestProvider];
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[self invalidateSafeAreaInsets];
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if (previousProviderView != _providerView) {
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if (previousProviderView != nil) {
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[NSNotificationCenter.defaultCenter removeObserver:self name:RNCSafeAreaDidChange object:previousProviderView];
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}
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if (_providerView != nil) {
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[NSNotificationCenter.defaultCenter addObserver:self
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selector:@selector(safeAreaProviderInsetsDidChange:)
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name:RNCSafeAreaDidChange
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object:_providerView];
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}
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}
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}
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- (void)safeAreaProviderInsetsDidChange:(NSNotification *)notification
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{
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[self invalidateSafeAreaInsets];
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}
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- (void)invalidateSafeAreaInsets
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{
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if (_providerView == nil) {
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return;
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}
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UIEdgeInsets safeAreaInsets = _providerView.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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[self updateLocalData];
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}
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- (nullable RNCSafeAreaProvider *)findNearestProvider
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{
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UIView *current = self.reactSuperview;
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while (current != nil) {
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if ([current isKindOfClass:RNCSafeAreaProvider.class]) {
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return (RNCSafeAreaProvider *)current;
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}
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current = current.reactSuperview;
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}
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return nil;
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}
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- (void)updateLocalData
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{
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if (_providerView == nil) {
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return;
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}
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RNCSafeAreaViewLocalData *localData = [[RNCSafeAreaViewLocalData alloc] initWithInsets:_currentSafeAreaInsets
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mode:_mode
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edges:_edges];
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[_bridge.uiManager setLocalData:localData forView:self];
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}
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- (void)setMode:(RNCSafeAreaViewMode)mode
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{
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_mode = mode;
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[self updateLocalData];
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}
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- (void)setEdges:(RNCSafeAreaViewEdges)edges
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{
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_edges = edges;
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[self updateLocalData];
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}
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@end
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