talk/examples/objc/AppRTCDemo/ARDSignalingChannel.h

/*
 * libjingle
 * Copyright 2014 Google Inc.
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#import <Foundation/Foundation.h>

#import "ARDSignalingMessage.h"

typedef NS_ENUM(NSInteger, ARDSignalingChannelState) {
  // State when disconnected.
  kARDSignalingChannelStateClosed,
  // State when connection is established but not ready for use.
  kARDSignalingChannelStateOpen,
  // State when connection is established and registered.
  kARDSignalingChannelStateRegistered,
  // State when connection encounters a fatal error.
  kARDSignalingChannelStateError
};

@protocol ARDSignalingChannel;
@protocol ARDSignalingChannelDelegate <NSObject>

- (void)channel:(id<ARDSignalingChannel>)channel
    didChangeState:(ARDSignalingChannelState)state;

- (void)channel:(id<ARDSignalingChannel>)channel
    didReceiveMessage:(ARDSignalingMessage *)message;

@end

@protocol ARDSignalingChannel <NSObject>

@property(nonatomic, readonly) NSString *roomId;
@property(nonatomic, readonly) NSString *clientId;
@property(nonatomic, readonly) ARDSignalingChannelState state;
@property(nonatomic, weak) id<ARDSignalingChannelDelegate> delegate;

// Registers the channel for the given room and client id.
- (void)registerForRoomId:(NSString *)roomId
                 clientId:(NSString *)clientId;

// Sends signaling message over the channel.
- (void)sendMessage:(ARDSignalingMessage *)message;

@end