1 files changed, 273 insertions, 0 deletions
diff --git a/chromium/third_party/libjingle/source/talk/app/webrtc/objc/RTCDataChannel.mm b/chromium/third_party/libjingle/source/talk/app/webrtc/objc/RTCDataChannel.mm
new file mode 100644
index 00000000000..08379403758
--- /dev/null
+++ b/chromium/third_party/libjingle/source/talk/app/webrtc/objc/RTCDataChannel.mm
@@ -0,0 +1,273 @@
+/*
+ * 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,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+#import "RTCDataChannel+Internal.h"
+
+#include "talk/app/webrtc/datachannelinterface.h"
+
+namespace webrtc {
+
+class RTCDataChannelObserver : public DataChannelObserver {
+ public:
+  RTCDataChannelObserver(RTCDataChannel* channel) { _channel = channel; }
+
+  virtual void OnStateChange() OVERRIDE {
+    [_channel.delegate channelDidChangeState:_channel];
+  }
+
+  virtual void OnMessage(const DataBuffer& buffer) OVERRIDE {
+    if (!_channel.delegate) {
+      return;
+    }
+    RTCDataBuffer* dataBuffer =
+        [[RTCDataBuffer alloc] initWithDataBuffer:buffer];
+    [_channel.delegate channel:_channel didReceiveMessageWithBuffer:dataBuffer];
+  }
+
+ private:
+  __weak RTCDataChannel* _channel;
+};
+}
+
+// TODO(tkchin): move to shared location
+NSString* NSStringFromStdString(const std::string& stdString) {
+  // std::string may contain null termination character so we construct
+  // using length.
+  return [[NSString alloc] initWithBytes:stdString.data()
+                                  length:stdString.length()
+                                encoding:NSUTF8StringEncoding];
+}
+
+std::string StdStringFromNSString(NSString* nsString) {
+  NSData* charData = [nsString dataUsingEncoding:NSUTF8StringEncoding];
+  return std::string(reinterpret_cast<const char*>([charData bytes]),
+                     [charData length]);
+}
+
+@implementation RTCDataChannelInit {
+  webrtc::DataChannelInit _dataChannelInit;
+}
+
+- (BOOL)isOrdered {
+  return _dataChannelInit.ordered;
+}
+
+- (void)setIsOrdered:(BOOL)isOrdered {
+  _dataChannelInit.ordered = isOrdered;
+}
+
+- (NSInteger)maxRetransmitTime {
+  return _dataChannelInit.maxRetransmitTime;
+}
+
+- (void)setMaxRetransmitTime:(NSInteger)maxRetransmitTime {
+  _dataChannelInit.maxRetransmitTime = maxRetransmitTime;
+}
+
+- (NSInteger)maxRetransmits {
+  return _dataChannelInit.maxRetransmits;
+}
+
+- (void)setMaxRetransmits:(NSInteger)maxRetransmits {
+  _dataChannelInit.maxRetransmits = maxRetransmits;
+}
+
+- (NSString*)protocol {
+  return NSStringFromStdString(_dataChannelInit.protocol);
+}
+
+- (void)setProtocol:(NSString*)protocol {
+  _dataChannelInit.protocol = StdStringFromNSString(protocol);
+}
+
+- (BOOL)isNegotiated {
+  return _dataChannelInit.negotiated;
+}
+
+- (void)setIsNegotiated:(BOOL)isNegotiated {
+  _dataChannelInit.negotiated = isNegotiated;
+}
+
+- (NSInteger)streamId {
+  return _dataChannelInit.id;
+}
+
+- (void)setStreamId:(NSInteger)streamId {
+  _dataChannelInit.id = streamId;
+}
+
+@end
+
+@implementation RTCDataChannelInit (Internal)
+
+- (const webrtc::DataChannelInit*)dataChannelInit {
+  return &_dataChannelInit;
+}
+
+@end
+
+@implementation RTCDataBuffer {
+  talk_base::scoped_ptr<webrtc::DataBuffer> _dataBuffer;
+}
+
+- (instancetype)initWithData:(NSData*)data isBinary:(BOOL)isBinary {
+  NSAssert(data, @"data cannot be nil");
+  if (self = [super init]) {
+    talk_base::Buffer buffer([data bytes], [data length]);
+    _dataBuffer.reset(new webrtc::DataBuffer(buffer, isBinary));
+  }
+  return self;
+}
+
+- (NSData*)data {
+  return [NSData dataWithBytes:_dataBuffer->data.data()
+                        length:_dataBuffer->data.length()];
+}
+
+- (BOOL)isBinary {
+  return _dataBuffer->binary;
+}
+
+@end
+
+@implementation RTCDataBuffer (Internal)
+
+- (instancetype)initWithDataBuffer:(const webrtc::DataBuffer&)buffer {
+  if (self = [super init]) {
+    _dataBuffer.reset(new webrtc::DataBuffer(buffer));
+  }
+  return self;
+}
+
+- (const webrtc::DataBuffer*)dataBuffer {
+  return _dataBuffer.get();
+}
+
+@end
+
+@implementation RTCDataChannel {
+  talk_base::scoped_refptr<webrtc::DataChannelInterface> _dataChannel;
+  talk_base::scoped_ptr<webrtc::RTCDataChannelObserver> _observer;
+  BOOL _isObserverRegistered;
+}
+
+- (NSString*)label {
+  return NSStringFromStdString(_dataChannel->label());
+}
+
+- (BOOL)isReliable {
+  return _dataChannel->reliable();
+}
+
+- (BOOL)isOrdered {
+  return _dataChannel->ordered();
+}
+
+- (NSUInteger)maxRetransmitTimeMs {
+  return _dataChannel->maxRetransmitTime();
+}
+
+- (NSUInteger)maxRetransmits {
+  return _dataChannel->maxRetransmits();
+}
+
+- (NSString*)protocol {
+  return NSStringFromStdString(_dataChannel->protocol());
+}
+
+- (BOOL)isNegotiated {
+  return _dataChannel->negotiated();
+}
+
+- (NSInteger)streamId {
+  return _dataChannel->id();
+}
+
+- (RTCDataChannelState)state {
+  switch (_dataChannel->state()) {
+    case webrtc::DataChannelInterface::DataState::kConnecting:
+      return kRTCDataChannelStateConnecting;
+    case webrtc::DataChannelInterface::DataState::kOpen:
+      return kRTCDataChannelStateOpen;
+    case webrtc::DataChannelInterface::DataState::kClosing:
+      return kRTCDataChannelStateClosing;
+    case webrtc::DataChannelInterface::DataState::kClosed:
+      return kRTCDataChannelStateClosed;
+  }
+}
+
+- (NSUInteger)bufferedAmount {
+  return _dataChannel->buffered_amount();
+}
+
+- (void)setDelegate:(id<RTCDataChannelDelegate>)delegate {
+  if (_delegate == delegate) {
+    return;
+  }
+  if (_isObserverRegistered) {
+    _dataChannel->UnregisterObserver();
+    _isObserverRegistered = NO;
+  }
+  _delegate = delegate;
+  if (_delegate) {
+    _dataChannel->RegisterObserver(_observer.get());
+    _isObserverRegistered = YES;
+  }
+}
+
+- (void)close {
+  _dataChannel->Close();
+}
+
+- (BOOL)sendData:(RTCDataBuffer*)data {
+  return _dataChannel->Send(*data.dataBuffer);
+}
+
+@end
+
+@implementation RTCDataChannel (Internal)
+
+- (instancetype)initWithDataChannel:
+                    (talk_base::scoped_refptr<webrtc::DataChannelInterface>)
+                dataChannel {
+  NSAssert(dataChannel != NULL, @"dataChannel cannot be NULL");
+  if (self = [super init]) {
+    _dataChannel = dataChannel;
+    _observer.reset(new webrtc::RTCDataChannelObserver(self));
+  }
+  return self;
+}
+
+- (talk_base::scoped_refptr<webrtc::DataChannelInterface>)dataChannel {
+  return _dataChannel;
+}
+
+@end