Rename RCTReachability to RCTNetInfo

Libraries/Network/RCTNetInfo.m

@@ -0,0 +1,96 @@
+/**
+ * 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 "RCTNetInfo.h"
+
+#import "RCTAssert.h"
+#import "RCTBridge.h"
+#import "RCTEventDispatcher.h"
+
+static NSString *const RCTReachabilityStateUnknown = @"unknown";
+static NSString *const RCTReachabilityStateNone = @"none";
+static NSString *const RCTReachabilityStateWifi = @"wifi";
+static NSString *const RCTReachabilityStateCell = @"cell";
+
+@implementation RCTNetInfo
+{
+  SCNetworkReachabilityRef _reachability;
+  NSString *_status;
+}
+
+@synthesize bridge = _bridge;
+
+RCT_EXPORT_MODULE()
+
+static void RCTReachabilityCallback(__unused SCNetworkReachabilityRef target, SCNetworkReachabilityFlags flags, void *info)
+{
+  RCTNetInfo *self = (__bridge id)info;
+  NSString *status = RCTReachabilityStateUnknown;
+  if ((flags & kSCNetworkReachabilityFlagsReachable) == 0 ||
+      (flags & kSCNetworkReachabilityFlagsConnectionRequired) != 0) {
+    status = RCTReachabilityStateNone;
+  }
+
+#if TARGET_OS_IPHONE
+
+  else if ((flags & kSCNetworkReachabilityFlagsIsWWAN) != 0) {
+    status = RCTReachabilityStateCell;
+  }
+
+#endif
+
+  else {
+    status = RCTReachabilityStateWifi;
+  }
+
+  if (![status isEqualToString:self->_status]) {
+    self->_status = status;
+    [self->_bridge.eventDispatcher sendDeviceEventWithName:@"networkDidChange"
+                                                      body:@{@"network_info": status}];
+  }
+}
+
+#pragma mark - Lifecycle
+
+- (instancetype)initWithHost:(NSString *)host
+{
+  RCTAssertParam(host);
+  RCTAssert(![host hasPrefix:@"http"], @"Host value should just contain the domain, not the URL scheme.");
+
+  if ((self = [super init])) {
+    _status = RCTReachabilityStateUnknown;
+    _reachability = SCNetworkReachabilityCreateWithName(kCFAllocatorDefault, host.UTF8String);
+    SCNetworkReachabilityContext context = { 0, ( __bridge void *)self, NULL, NULL, NULL };
+    SCNetworkReachabilitySetCallback(_reachability, RCTReachabilityCallback, &context);
+    SCNetworkReachabilityScheduleWithRunLoop(_reachability, CFRunLoopGetMain(), kCFRunLoopCommonModes);
+  }
+  return self;
+}
+
+- (instancetype)init
+{
+  return [self initWithHost:@"apple.com"];
+}
+
+- (void)dealloc
+{
+  SCNetworkReachabilityUnscheduleFromRunLoop(_reachability, CFRunLoopGetMain(), kCFRunLoopCommonModes);
+  CFRelease(_reachability);
+}
+
+#pragma mark - Public API
+
+// TODO: remove error callback - not needed except by Subscribable interface
+RCT_EXPORT_METHOD(getCurrentReachability:(RCTResponseSenderBlock)getSuccess
+                  withErrorCallback:(__unused RCTResponseSenderBlock)getError)
+{
+  getSuccess(@[@{@"network_info": _status}]);
+}
+
+@end