102 lines
2.5 KiB
Plaintext
102 lines
2.5 KiB
Plaintext
/**
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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 "RCTUIManagerObserverCoordinator.h"
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#import <mutex>
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#import "RCTUIManager.h"
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@implementation RCTUIManagerObserverCoordinator {
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NSHashTable<id<RCTUIManagerObserver>> *_observers;
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std::mutex _mutex;
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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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_observers = [[NSHashTable alloc] initWithOptions:NSHashTableWeakMemory capacity:0];
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}
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return self;
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}
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- (void)addObserver:(id<RCTUIManagerObserver>)observer
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{
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std::lock_guard<std::mutex> lock(_mutex);
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[self->_observers addObject:observer];
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}
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- (void)removeObserver:(id<RCTUIManagerObserver>)observer
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{
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std::lock_guard<std::mutex> lock(_mutex);
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[self->_observers removeObject:observer];
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}
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#pragma mark - RCTUIManagerObserver
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- (void)uiManagerWillPerformLayout:(RCTUIManager *)manager
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{
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std::lock_guard<std::mutex> lock(_mutex);
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for (id<RCTUIManagerObserver> observer in _observers) {
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if ([observer respondsToSelector:@selector(uiManagerWillPerformLayout:)]) {
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[observer uiManagerWillPerformLayout:manager];
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}
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}
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}
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- (void)uiManagerDidPerformLayout:(RCTUIManager *)manager
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{
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std::lock_guard<std::mutex> lock(_mutex);
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for (id<RCTUIManagerObserver> observer in _observers) {
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if ([observer respondsToSelector:@selector(uiManagerDidPerformLayout:)]) {
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[observer uiManagerDidPerformLayout:manager];
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}
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}
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}
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- (void)uiManagerWillPerformMounting:(RCTUIManager *)manager
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{
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std::lock_guard<std::mutex> lock(_mutex);
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for (id<RCTUIManagerObserver> observer in _observers) {
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if ([observer respondsToSelector:@selector(uiManagerWillPerformMounting:)]) {
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[observer uiManagerWillPerformMounting:manager];
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}
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}
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}
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- (BOOL)uiManager:(RCTUIManager *)manager performMountingWithBlock:(RCTUIManagerMountingBlock)block
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{
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std::lock_guard<std::mutex> lock(_mutex);
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for (id<RCTUIManagerObserver> observer in _observers) {
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if ([observer respondsToSelector:@selector(uiManager:performMountingWithBlock:)]) {
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if ([observer uiManager:manager performMountingWithBlock:block]) {
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return YES;
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}
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}
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}
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return NO;
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}
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- (void)uiManagerDidPerformMounting:(RCTUIManager *)manager
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{
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std::lock_guard<std::mutex> lock(_mutex);
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for (id<RCTUIManagerObserver> observer in _observers) {
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if ([observer respondsToSelector:@selector(uiManagerDidPerformMounting:)]) {
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[observer uiManagerDidPerformMounting:manager];
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}
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}
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}
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@end
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