react-native/React/DevSupport/RCTPackagerConnection.m

88 lines
2.3 KiB
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import "RCTPackagerConnection.h"
#import <objc/runtime.h>
#import <React/RCTAssert.h>
#import <React/RCTBridge.h>
#import <React/RCTWebSocketObserverProtocol.h>
#import "RCTPackagerClient.h"
#import "RCTReloadPackagerMethod.h"
#import "RCTSamplingProfilerPackagerMethod.h"
#if RCT_DEV
@implementation RCTPackagerConnection {
RCTBridge *_bridge;
}
- (instancetype)initWithBridge:(RCTBridge *)bridge
{
if (self = [super init]) {
_bridge = bridge;
}
return self;
}
- (void)connect
{
RCTAssertMainQueue();
NSURL *url = [self packagerURL];
if (!url) {
return;
}
// The jsPackagerClient is a static map that holds different packager clients per the packagerURL
// In case many instances of DevMenu are created, the latest instance that use the same URL as
// previous instances will override given packager client's method handlers
static NSMutableDictionary<NSString *, RCTPackagerClient *> *jsPackagerClients = nil;
if (jsPackagerClients == nil) {
jsPackagerClients = [NSMutableDictionary new];
}
NSString *key = [url absoluteString];
RCTPackagerClient *packagerClient = jsPackagerClients[key];
if (!packagerClient) {
packagerClient = [[RCTPackagerClient alloc] initWithURL:url];
jsPackagerClients[key] = packagerClient;
} else {
[packagerClient stop];
}
[packagerClient addHandler:[[RCTReloadPackagerMethod alloc] initWithBridge:_bridge]
forMethod:@"reload"];
[packagerClient addHandler:[[RCTSamplingProfilerPackagerMethod alloc] initWithBridge:_bridge]
forMethod:@"pokeSamplingProfiler"];
[packagerClient start];
}
- (NSURL *)packagerURL
{
NSString *host = [_bridge.bundleURL host];
NSString *scheme = [_bridge.bundleURL scheme];
if (!host) {
host = @"localhost";
scheme = @"http";
}
NSNumber *port = [_bridge.bundleURL port];
if (!port) {
port = @8081; // Packager default port
}
return [NSURL URLWithString:[NSString stringWithFormat:@"%@://%@:%@/message?role=ios-rn-rctdevmenu", scheme, host, port]];
}
@end
#endif