talk/examples/objc/AppRTCDemo/ARDAppClient.h

/*
 * libjingle
 * Copyright 2014 Google Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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#import <Foundation/Foundation.h>

#import "RTCVideoTrack.h"

typedef NS_ENUM(NSInteger, ARDAppClientState) {
  // Disconnected from servers.
  kARDAppClientStateDisconnected,
  // Connecting to servers.
  kARDAppClientStateConnecting,
  // Connected to servers.
  kARDAppClientStateConnected,
};

@class ARDAppClient;
// The delegate is informed of pertinent events and will be called on the
// main queue.
@protocol ARDAppClientDelegate <NSObject>

- (void)appClient:(ARDAppClient *)client
    didChangeState:(ARDAppClientState)state;

- (void)appClient:(ARDAppClient *)client
    didChangeConnectionState:(RTCICEConnectionState)state;

- (void)appClient:(ARDAppClient *)client
    didReceiveLocalVideoTrack:(RTCVideoTrack *)localVideoTrack;

- (void)appClient:(ARDAppClient *)client
    didReceiveRemoteVideoTrack:(RTCVideoTrack *)remoteVideoTrack;

- (void)appClient:(ARDAppClient *)client
         didError:(NSError *)error;

@end

// Handles connections to the AppRTC server for a given room. Methods on this
// class should only be called from the main queue.
@interface ARDAppClient : NSObject

@property(nonatomic, readonly) ARDAppClientState state;
@property(nonatomic, weak) id<ARDAppClientDelegate> delegate;

// Convenience constructor since all expected use cases will need a delegate
// in order to receive remote tracks.
- (instancetype)initWithDelegate:(id<ARDAppClientDelegate>)delegate;

// Establishes a connection with the AppRTC servers for the given room id.
// TODO(tkchin): provide available keys/values for options. This will be used
// for call configurations such as overriding server choice, specifying codecs
// and so on.
- (void)connectToRoomWithId:(NSString *)roomId
                    options:(NSDictionary *)options;

// Disconnects from the AppRTC servers and any connected clients.
- (void)disconnect;

@end