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617eb309a1
Summary: Introduces an API to register a weakly-held listener for the reload (Cmd+R) command. This allows external infrastructure to hook into the reload command before the `RCTBridge` object is even created. Reviewed By: javache Differential Revision: D4286980 fbshipit-source-id: 51012fb8cbeb433dc880d9d98d847b07fdbb4c4f
38 lines
1.2 KiB
Objective-C
38 lines
1.2 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 "RCTReloadCommand.h"
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#import "RCTKeyCommands.h"
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void RCTRegisterReloadCommandListener(id<RCTReloadListener> listener)
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{
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static NSHashTable<id<RCTReloadListener>> *listeners;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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listeners = [NSHashTable weakObjectsHashTable];
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[[RCTKeyCommands sharedInstance] registerKeyCommandWithInput:@"r"
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modifierFlags:UIKeyModifierCommand
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action:
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^(__unused UIKeyCommand *command) {
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NSArray<id<RCTReloadListener>> *copiedListeners;
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@synchronized (listeners) { // avoid mutation-while-enumerating
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copiedListeners = [listeners allObjects];
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}
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for (id<RCTReloadListener> l in copiedListeners) {
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[l didReceiveReloadCommand];
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}
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}];
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});
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@synchronized (listeners) {
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[listeners addObject:listener];
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}
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}
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