reland crrev.com/212927 Move webkitplatformsupport_impl and related from glue to child

webkit/glue/websocketstreamhandle_impl.cc

-// 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.
-
-// An implementation of WebSocketStreamHandle.
-
-#include "webkit/glue/websocketstreamhandle_impl.h"
-
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "base/logging.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/string16.h"
-#include "third_party/WebKit/public/platform/WebData.h"
-#include "third_party/WebKit/public/platform/WebSocketStreamError.h"
-#include "third_party/WebKit/public/platform/WebSocketStreamHandleClient.h"
-#include "third_party/WebKit/public/platform/WebURL.h"
-#include "webkit/glue/webkitplatformsupport_impl.h"
-#include "webkit/glue/websocketstreamhandle_bridge.h"
-#include "webkit/glue/websocketstreamhandle_delegate.h"
-
-using WebKit::WebData;
-using WebKit::WebSocketStreamError;
-using WebKit::WebSocketStreamHandle;
-using WebKit::WebSocketStreamHandleClient;
-using WebKit::WebURL;
-
-namespace webkit_glue {
-
-// WebSocketStreamHandleImpl::Context -----------------------------------------
-
-class WebSocketStreamHandleImpl::Context
-    : public base::RefCounted<Context>,
-      public WebSocketStreamHandleDelegate {
- public:
-  explicit Context(WebSocketStreamHandleImpl* handle);
-
-  WebSocketStreamHandleClient* client() const { return client_; }
-  void set_client(WebSocketStreamHandleClient* client) {
-    client_ = client;
-  }
-
-  void Connect(const WebURL& url, WebKitPlatformSupportImpl* platform);
-  bool Send(const WebData& data);
-  void Close();
-
-  // Must be called before |handle_| or |client_| is deleted.
-  // Once detached, it never calls |client_| back.
-  void Detach();
-
-  // WebSocketStreamHandleDelegate methods:
-  virtual void DidOpenStream(WebSocketStreamHandle*, int) OVERRIDE;
-  virtual void DidSendData(WebSocketStreamHandle*, int) OVERRIDE;
-  virtual void DidReceiveData(WebSocketStreamHandle*,
-                              const char*,
-                              int) OVERRIDE;
-  virtual void DidClose(WebSocketStreamHandle*) OVERRIDE;
-  virtual void DidFail(WebSocketStreamHandle*, int, const string16&) OVERRIDE;
-
- private:
-  friend class base::RefCounted<Context>;
-  virtual ~Context() {
-    DCHECK(!handle_);
-    DCHECK(!client_);
-    DCHECK(!bridge_.get());
-  }
-
-  WebSocketStreamHandleImpl* handle_;
-  WebSocketStreamHandleClient* client_;
-  // |bridge_| is alive from Connect to DidClose, so Context must be alive
-  // in the time period.
-  scoped_refptr<WebSocketStreamHandleBridge> bridge_;
-
-  DISALLOW_COPY_AND_ASSIGN(Context);
-};
-
-WebSocketStreamHandleImpl::Context::Context(WebSocketStreamHandleImpl* handle)
-    : handle_(handle),
-      client_(NULL),
-      bridge_(NULL) {
-}
-
-void WebSocketStreamHandleImpl::Context::Connect(
-    const WebURL& url,
-    WebKitPlatformSupportImpl* platform) {
-  VLOG(1) << "Connect url=" << url;
-  DCHECK(!bridge_.get());
-  bridge_ = platform->CreateWebSocketBridge(handle_, this);
-  AddRef();  // Will be released by DidClose().
-  bridge_->Connect(url);
-}
-
-bool WebSocketStreamHandleImpl::Context::Send(const WebData& data) {
-  VLOG(1) << "Send data.size=" << data.size();
-  DCHECK(bridge_.get());
-  return bridge_->Send(
-      std::vector<char>(data.data(), data.data() + data.size()));
-}
-
-void WebSocketStreamHandleImpl::Context::Close() {
-  VLOG(1) << "Close";
-  if (bridge_.get())
-    bridge_->Close();
-}
-
-void WebSocketStreamHandleImpl::Context::Detach() {
-  handle_ = NULL;
-  client_ = NULL;
-  // If Connect was called, |bridge_| is not NULL, so that this Context closes
-  // the |bridge_| here.  Then |bridge_| will call back DidClose, and will
-  // be released by itself.
-  // Otherwise, |bridge_| is NULL.
-  if (bridge_.get())
-    bridge_->Close();
-}
-
-void WebSocketStreamHandleImpl::Context::DidOpenStream(
-    WebSocketStreamHandle* web_handle, int max_amount_send_allowed) {
-  VLOG(1) << "DidOpen";
-  if (client_)
-    client_->didOpenStream(handle_, max_amount_send_allowed);
-}
-
-void WebSocketStreamHandleImpl::Context::DidSendData(
-    WebSocketStreamHandle* web_handle, int amount_sent) {
-  if (client_)
-    client_->didSendData(handle_, amount_sent);
-}
-
-void WebSocketStreamHandleImpl::Context::DidReceiveData(
-    WebSocketStreamHandle* web_handle, const char* data, int size) {
-  if (client_)
-    client_->didReceiveData(handle_, WebData(data, size));
-}
-
-void WebSocketStreamHandleImpl::Context::DidClose(
-    WebSocketStreamHandle* web_handle) {
-  VLOG(1) << "DidClose";
-  bridge_ = NULL;
-  WebSocketStreamHandleImpl* handle = handle_;
-  handle_ = NULL;
-  if (client_) {
-    WebSocketStreamHandleClient* client = client_;
-    client_ = NULL;
-    client->didClose(handle);
-  }
-  Release();
-}
-
-void WebSocketStreamHandleImpl::Context::DidFail(
-    WebSocketStreamHandle* web_handle,
-    int error_code,
-    const string16& error_msg) {
-  VLOG(1) << "DidFail";
-  if (client_) {
-    client_->didFail(
-        handle_,
-        WebSocketStreamError(error_code, error_msg));
-  }
-}
-
-// WebSocketStreamHandleImpl ------------------------------------------------
-
-WebSocketStreamHandleImpl::WebSocketStreamHandleImpl(
-    WebKitPlatformSupportImpl* platform)
-    : context_(new Context(this)),
-      platform_(platform) {
-}
-
-WebSocketStreamHandleImpl::~WebSocketStreamHandleImpl() {
-  // We won't receive any events from |context_|.
-  // |context_| is ref counted, and will be released when it received
-  // DidClose.
-  context_->Detach();
-}
-
-void WebSocketStreamHandleImpl::connect(
-    const WebURL& url, WebSocketStreamHandleClient* client) {
-  VLOG(1) << "connect url=" << url;
-  DCHECK(!context_->client());
-  context_->set_client(client);
-
-  context_->Connect(url, platform_);
-}
-
-bool WebSocketStreamHandleImpl::send(const WebData& data) {
-  return context_->Send(data);
-}
-
-void WebSocketStreamHandleImpl::close() {
-  context_->Close();
-}
-
-}  // namespace webkit_glue