WebSocket Pepper API: C++ utility class implementation.

ppapi/utility/websocket/websocket_api.cc

Index: ppapi/utility/websocket/websocket_api.cc
diff --git a/ppapi/utility/websocket/websocket_api.cc b/ppapi/utility/websocket/websocket_api.cc
new file mode 100644
index 0000000000000000000000000000000000000000..db4e01aa36e592e3da11b4d47abe8acf0d042f23
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+++ b/ppapi/utility/websocket/websocket_api.cc
@@ -0,0 +1,143 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ppapi/utility/websocket/websocket_api.h"
+
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/c/pp_macros.h"
+#include "ppapi/cpp/instance.h"
+#include "ppapi/cpp/module.h"
+#include "ppapi/cpp/module_impl.h"
+#include "ppapi/cpp/var.h"
+#include "ppapi/cpp/websocket.h"
+#include "ppapi/utility/completion_callback_factory.h"
+
+namespace pp {
+
+class WebSocketAPI::Implement : public WebSocket {
+ public:
+  Implement(Instance* instance, WebSocketAPI* api)
+      : WebSocket(instance),
+        api_(api),
+        callback_factory_(PP_ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
+  }
+
+  virtual ~Implement() {}
+
+  int32_t Connect(const Var& url, const Var protocols[],
+                  uint32_t protocol_count) {
+    CompletionCallback callback =
+        callback_factory_.NewOptionalCallback(&Implement::DidConnect);
+    int32_t result =
+        WebSocket::Connect(url, protocols, protocol_count, callback);
+    if (result != PP_OK_COMPLETIONPENDING) {
+      // In synchronous cases, consumes callback here and invokes callback
+      // with PP_ERROR_ABORTED instead of result in order to avoid side effects
+      // in DidConnect. DidConnect ignores this invocation and doesn't call
+      // any delegate virtual method.
+      callback.Run(PP_ERROR_ABORTED);
+    }
+    return result;
+  }
+
+  int32_t Close(uint16_t code, const Var& reason) {
+    CompletionCallback callback =
+        callback_factory_.NewOptionalCallback(&Implement::DidClose);
+    int32_t result = WebSocket::Close(code, reason, callback);
+    if (result != PP_OK_COMPLETIONPENDING) {
+      // In synchronous cases, consumes callback here and invokes callback
+      // with PP_ERROR_ABORTED instead of result in order to avoid side effects
+      // in DidConnect. DidConnect ignores this invocation and doesn't call
+      // any delegate virtual method.
+      callback.Run(PP_ERROR_ABORTED);
+    }
+    return result;
+  }
+
+  void Receive() {
+    int32_t result;
+    do {
+      CompletionCallback callback =
+          callback_factory_.NewOptionalCallback(&Implement::DidReceive);
+      result = WebSocket::ReceiveMessage(&receive_message_var_, callback);
+      if (result != PP_OK_COMPLETIONPENDING)
+        callback.Run(result);
+    } while (result == PP_OK);
+  }
+
+  void DidConnect(int32_t result) {
+    if (result == PP_OK) {
+      api_->WebSocketDidOpen();
+      Receive();
+    } else if (result != PP_ERROR_ABORTED) {
+      DidClose(result);
+    }
+  }
+
+  void DidReceive(int32_t result) {
+    if (result == PP_OK) {
+      api_->HandleWebSocketMessage(receive_message_var_);
+      Receive();
+    } else if (result != PP_ERROR_ABORTED) {
+      DidClose(result);
+    }
+  }
+
+  void DidClose(int32_t result) {
+    if (result == PP_ERROR_ABORTED)
+      return;
+    bool was_clean = GetCloseWasClean();
+    if (!was_clean)
+      api_->HandleWebSocketError();
+    api_->WebSocketDidClose(was_clean, GetCloseCode(), GetCloseReason());
+  }
+
+ private:
+  WebSocketAPI* api_;
+  CompletionCallbackFactory<Implement> callback_factory_;
+  Var receive_message_var_;
+};
+
+WebSocketAPI::WebSocketAPI(Instance* instance)
+    : impl_(new Implement(instance, PP_ALLOW_THIS_IN_INITIALIZER_LIST(this))) {
+}
+
+WebSocketAPI::~WebSocketAPI() {
+  delete impl_;
+}
+
+int32_t WebSocketAPI::Connect(const Var& url, const Var protocols[],
+                              uint32_t protocol_count) {
+  return impl_->Connect(url, protocols, protocol_count);
+}
+
+int32_t WebSocketAPI::Close(uint16_t code, const Var& reason) {
+  return impl_->Close(code, reason);
+}
+
+int32_t WebSocketAPI::Send(const Var& data) {
+  return impl_->SendMessage(data);
+}
+
+uint64_t WebSocketAPI::GetBufferedAmount() {
+  return impl_->GetBufferedAmount();
+}
+
+Var WebSocketAPI::GetExtensions() {
+  return impl_->GetExtensions();
+}
+
+Var WebSocketAPI::GetProtocol() {
+  return impl_->GetProtocol();
+}
+
+PP_WebSocketReadyState WebSocketAPI::GetReadyState() {
+  return impl_->GetReadyState();
+}
+
+Var WebSocketAPI::GetURL() {
+  return impl_->GetURL();
+}
+
+}  // namespace pp