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Fixes iOS reload through metro "r" command key #28477

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Fixes iOS reload through metro "r" command key #28477

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8e85283
Fixes iOS reload through metro "r" command key
reyalpsirc Apr 1, 2020
69882d9
- Made access to packagerServerHost and removed the assign to self.js…
reyalpsirc Apr 2, 2020
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6 changes: 6 additions & 0 deletions React/Base/RCTBundleURLProvider.h
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,12 @@ extern const NSUInteger kRCTBundleURLProviderDefaultPort;
*/
- (void)resetToDefaults;

/**
* Return the server host. If its a development build and there's no jsLocation defined,
* it will return the server host IP address
*/
- (NSString *)packagerServerHost;

#if RCT_DEV
- (BOOL)isPackagerRunning:(NSString *)host;
#endif
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18 changes: 9 additions & 9 deletions React/DevSupport/RCTPackagerConnection.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,7 @@ @implementation RCTPackagerConnection {
std::mutex _mutex; // protects all ivars
RCTReconnectingWebSocket *_socket;
BOOL _socketConnected;
NSString *_jsLocationForSocket;
NSString *_serverHostForSocket;
id _bundleURLChangeObserver;
uint32_t _nextToken;
std::vector<Registration<RCTNotificationHandler>> _notificationRegistrations;
Expand All @@ -62,8 +62,8 @@ - (instancetype)init
{
if (self = [super init]) {
_nextToken = 1; // Prevent randomly erasing a handler if you pass a bogus 0 token
_jsLocationForSocket = [RCTBundleURLProvider sharedSettings].jsLocation;
_socket = socketForLocation(_jsLocationForSocket);
_serverHostForSocket = [[RCTBundleURLProvider sharedSettings] packagerServerHost];
_socket = socketForLocation(_serverHostForSocket);
_socket.delegate = self;
[_socket start];

Expand All @@ -79,10 +79,10 @@ - (instancetype)init
return self;
}

static RCTReconnectingWebSocket *socketForLocation(NSString *const jsLocation)
static RCTReconnectingWebSocket *socketForLocation(NSString *const serverHost)
{
NSURLComponents *const components = [NSURLComponents new];
components.host = jsLocation ?: @"localhost";
components.host = serverHost ?: @"localhost";
components.scheme = @"http";
components.port = @(kRCTBundleURLProviderDefaultPort);
components.path = @"/message";
Expand Down Expand Up @@ -118,15 +118,15 @@ - (void)bundleURLSettingsChanged
return; // already stopped
}

NSString *const jsLocation = [RCTBundleURLProvider sharedSettings].jsLocation;
if ([jsLocation isEqual:_jsLocationForSocket]) {
NSString *const serverHost = [[RCTBundleURLProvider sharedSettings] packagerServerHost];
if ([serverHost isEqual:_serverHostForSocket]) {
return; // unchanged
}

_socket.delegate = nil;
[_socket stop];
_jsLocationForSocket = jsLocation;
_socket = socketForLocation(jsLocation);
_serverHostForSocket = serverHost;
_socket = socketForLocation(serverHost);
_socket.delegate = self;
[_socket start];
}
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