Implementations of SharedWorker in the renderer process.

content/renderer/shared_worker/embedded_shared_worker_stub.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2013 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 "content/worker/websharedworker_stub.h"
+#include "content/renderer/shared_worker/embedded_shared_worker_stub.h"
 
-#include "base/compiler_specific.h"
-#include "content/child/child_process.h"
+#include "base/message_loop/message_loop_proxy.h"
 #include "content/child/child_thread.h"
-#include "content/child/fileapi/file_system_dispatcher.h"
+#include "content/child/scoped_child_process_reference.h"
+#include "content/child/thread_safe_sender.h"
 #include "content/child/webmessageportchannel_impl.h"
+#include "content/child/worker_thread_task_runner.h"
 #include "content/common/worker_messages.h"
-#include "content/worker/shared_worker_devtools_agent.h"
-#include "content/worker/worker_thread.h"
+#include "content/renderer/render_thread_impl.h"
+#include "content/renderer/shared_worker/embedded_shared_worker_devtools_agent.h"
+#include "ipc/ipc_message_macros.h"
 #include "third_party/WebKit/public/web/WebSharedWorker.h"
-#include "third_party/WebKit/public/platform/WebString.h"
-#include "third_party/WebKit/public/platform/WebURL.h"
+#include "third_party/WebKit/public/web/WebSharedWorkerClient.h"
 
 namespace content {
 
-WebSharedWorkerStub::WebSharedWorkerStub(
+EmbeddedSharedWorkerStub::EmbeddedSharedWorkerStub(
     const GURL& url,
     const base::string16& name,
     const base::string16& content_security_policy,
     blink::WebContentSecurityPolicyType security_policy_type,
     int route_id)
     : route_id_(route_id),
-      client_(route_id, this),
-      running_(false),
+      name_(name),
+      runing_(false),
       url_(url) {
-
-  WorkerThread* worker_thread = WorkerThread::current();
-  DCHECK(worker_thread);
-  worker_thread->AddWorkerStub(this);
-  // Start processing incoming IPCs for this worker.
-  worker_thread->AddRoute(route_id_, this);
-
-  // TODO(atwilson): Add support for NaCl when they support MessagePorts.
-  impl_ = blink::WebSharedWorker::create(client());
-  worker_devtools_agent_.reset(new SharedWorkerDevToolsAgent(route_id, impl_));
-  client()->set_devtools_agent(worker_devtools_agent_.get());
-  impl_->startWorkerContext(url_, name,
+  RenderThreadImpl::current()->AddRoute(route_id_, this);
+  impl_ = blink::WebSharedWorker::create(this);
+  worker_devtools_agent_.reset(
+      new EmbeddedSharedWorkerDevToolsAgent(route_id, impl_));
+  impl_->startWorkerContext(url, name_,
                             content_security_policy, security_policy_type);
 }
 
-WebSharedWorkerStub::~WebSharedWorkerStub() {
-  impl_->clientDestroyed();
-  WorkerThread* worker_thread = WorkerThread::current();
-  DCHECK(worker_thread);
-  worker_thread->RemoveWorkerStub(this);
-  worker_thread->RemoveRoute(route_id_);
+EmbeddedSharedWorkerStub::~EmbeddedSharedWorkerStub() {
+  RenderThreadImpl::current()->RemoveRoute(route_id_);
 }
 
-void WebSharedWorkerStub::Shutdown() {
-  // The worker has exited - free ourselves and the client.
-  delete this;
-}
-
-void WebSharedWorkerStub::EnsureWorkerContextTerminates() {
-  client_.EnsureWorkerContextTerminates();
-}
-
-bool WebSharedWorkerStub::OnMessageReceived(const IPC::Message& message) {
+bool EmbeddedSharedWorkerStub::OnMessageReceived(
+    const IPC::Message& message) {
   if (worker_devtools_agent_->OnMessageReceived(message))
     return true;
-
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(WebSharedWorkerStub, message)
+  IPC_BEGIN_MESSAGE_MAP(EmbeddedSharedWorkerStub, message)
     IPC_MESSAGE_HANDLER(WorkerMsg_TerminateWorkerContext,
                         OnTerminateWorkerContext)
     IPC_MESSAGE_HANDLER(WorkerMsg_Connect, OnConnect)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
-void WebSharedWorkerStub::OnChannelError() {
-    OnTerminateWorkerContext();
+void EmbeddedSharedWorkerStub::OnChannelError() {
+  OnTerminateWorkerContext();
 }
 
-const GURL& WebSharedWorkerStub::url() {
-  return url_;
-}
-
-void WebSharedWorkerStub::OnConnect(int sent_message_port_id, int routing_id) {
-  WebMessagePortChannelImpl* channel =
-      new WebMessagePortChannelImpl(routing_id,
-                                    sent_message_port_id,
-                                    base::MessageLoopProxy::current().get());
-  if (running_) {
-    impl_->connect(channel);
-    WorkerThread::current()->Send(
-        new WorkerHostMsg_WorkerConnected(channel->message_port_id(),
-                                          route_id_));
-  } else {
-    // If two documents try to load a SharedWorker at the same time, the
-    // WorkerMsg_Connect for one of the documents can come in before the
-    // worker is started. Just queue up the connect and deliver it once the
-    // worker starts.
-    pending_channels_.push_back(channel);
-  }
-}
-
-void WebSharedWorkerStub::OnTerminateWorkerContext() {
-  impl_->terminateWorkerContext();
-
-  // Call the client to make sure context exits.
-  EnsureWorkerContextTerminates();
-  running_ = false;
-}
-
-void WebSharedWorkerStub::WorkerScriptLoaded() {
-  running_ = true;
+void EmbeddedSharedWorkerStub::workerScriptLoaded() {
+  Send(new WorkerHostMsg_WorkerScriptLoaded(route_id_));
+  runing_ = true;
   // Process any pending connections.
   for (PendingChannelList::const_iterator iter = pending_channels_.begin();
        iter != pending_channels_.end();
        ++iter) {
     impl_->connect(*iter);
-    WorkerThread::current()->Send(
-        new WorkerHostMsg_WorkerConnected((*iter)->message_port_id(),
-                                          route_id_));
+    Send(new WorkerHostMsg_WorkerConnected((*iter)->message_port_id(),
+                                           route_id_));
   }
   pending_channels_.clear();
 }
 
-void WebSharedWorkerStub::WorkerScriptLoadFailed() {
+void EmbeddedSharedWorkerStub::workerScriptLoadFailed() {
+  Send(new WorkerHostMsg_WorkerScriptLoadFailed(route_id_));
   for (PendingChannelList::const_iterator iter = pending_channels_.begin();
        iter != pending_channels_.end();
        ++iter) {
     blink::WebMessagePortChannel* channel = *iter;
     channel->destroy();
   }
   pending_channels_.clear();
   Shutdown();
 }
 
+void EmbeddedSharedWorkerStub::workerContextClosed() {
+  Send(new WorkerHostMsg_WorkerContextClosed(route_id_));
+}
+
+void EmbeddedSharedWorkerStub::workerContextDestroyed() {
+  Send(new WorkerHostMsg_WorkerContextDestroyed(route_id_));
+  Shutdown();
+}
+
+void EmbeddedSharedWorkerStub::selectAppCacheID(long long) {
+  //TODO(horo): implement this.
+}
+
+blink::WebNotificationPresenter*
+EmbeddedSharedWorkerStub::notificationPresenter() {
+  // TODO(johnnyg): Notifications are not yet hooked up to workers.
+  // Coming soon.
+  NOTREACHED();
+  return NULL;
+}
+
+blink::WebApplicationCacheHost*
+    EmbeddedSharedWorkerStub::createApplicationCacheHost(
+        blink::WebApplicationCacheHostClient*) {
+  //TODO(horo): implement this.
+  return NULL;
+}
+
+blink::WebWorkerPermissionClientProxy*
+    EmbeddedSharedWorkerStub::createWorkerPermissionClientProxy(
+    const blink::WebSecurityOrigin& origin) {
+  //TODO(horo): implement this.
+  return NULL;
+}
+
+void EmbeddedSharedWorkerStub::dispatchDevToolsMessage(
+      const blink::WebString& message) {
+  worker_devtools_agent_->SendDevToolsMessage(message);
+}
+
+void EmbeddedSharedWorkerStub::saveDevToolsAgentState(
+      const blink::WebString& state) {
+  worker_devtools_agent_->SaveDevToolsAgentState(state);
+}
+
+void EmbeddedSharedWorkerStub::Shutdown() {
+  delete this;
+}
+
+bool EmbeddedSharedWorkerStub::Send(IPC::Message* message) {
+  return RenderThreadImpl::current()->Send(message);
+}
+
+void EmbeddedSharedWorkerStub::OnConnect(int sent_message_port_id,
+                                         int routing_id) {
+  WebMessagePortChannelImpl* channel =
+      new WebMessagePortChannelImpl(routing_id,
+                                    sent_message_port_id,
+                                    base::MessageLoopProxy::current().get());
+  if (runing_) {
+    impl_->connect(channel);
+  } else {
+    // If two documents try to load a SharedWorker at the same time, the
+    // WorkerMsg_Connect for one of the documents can come in before the
+    // worker is started. Just queue up the connect and deliver it once the
+    // worker starts.
+    pending_channels_.push_back(channel);
+  }
+}
+
+void EmbeddedSharedWorkerStub::OnTerminateWorkerContext() {
+  runing_ = false;
+  impl_->terminateWorkerContext();
+}
+
 }  // namespace content