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| 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "chrome/renderer/webworker_proxy.h" |
| 6 |
| 7 #include "chrome/common/render_messages.h" |
| 8 #include "chrome/common/worker_messages.h" |
| 9 #include "chrome/renderer/render_thread.h" |
| 10 #include "webkit/glue/webworkerclient.h" |
| 11 |
| 12 WebWorkerProxy::WebWorkerProxy( |
| 13 IPC::Message::Sender* sender, WebWorkerClient* client) |
| 14 : sender_(sender), |
| 15 route_id_(MSG_ROUTING_NONE), |
| 16 client_(client) { |
| 17 } |
| 18 |
| 19 WebWorkerProxy::~WebWorkerProxy() { |
| 20 } |
| 21 |
| 22 void WebWorkerProxy::StartWorkerContext( |
| 23 const GURL& script_url, |
| 24 const string16& user_agent, |
| 25 const string16& source_code) { |
| 26 sender_->Send( |
| 27 new ViewHostMsg_CreateDedicatedWorker(script_url, &route_id_)); |
| 28 if (route_id_ == MSG_ROUTING_NONE) |
| 29 return; |
| 30 |
| 31 RenderThread::current()->AddRoute(route_id_, this); |
| 32 Send(new WorkerMsg_StartWorkerContext( |
| 33 route_id_, script_url, user_agent, source_code)); |
| 34 } |
| 35 |
| 36 void WebWorkerProxy::TerminateWorkerContext() { |
| 37 if (route_id_ != MSG_ROUTING_NONE) { |
| 38 Send(new WorkerMsg_TerminateWorkerContext(route_id_)); |
| 39 RenderThread::current()->RemoveRoute(route_id_); |
| 40 route_id_ = MSG_ROUTING_NONE; |
| 41 } |
| 42 } |
| 43 |
| 44 void WebWorkerProxy::PostMessageToWorkerContext( |
| 45 const string16& message) { |
| 46 Send(new WorkerMsg_PostMessageToWorkerContext(route_id_, message)); |
| 47 } |
| 48 |
| 49 void WebWorkerProxy::WorkerObjectDestroyed() { |
| 50 client_ = NULL; |
| 51 Send(new WorkerMsg_WorkerObjectDestroyed(route_id_)); |
| 52 } |
| 53 |
| 54 bool WebWorkerProxy::Send(IPC::Message* message) { |
| 55 if (route_id_ == MSG_ROUTING_NONE) { |
| 56 delete message; |
| 57 return false; |
| 58 } |
| 59 |
| 60 // For now we proxy all messages to the worker process through the browser. |
| 61 // Revisit if we find this slow. |
| 62 // TODO(jabdelmalek): handle sync messages if we need them. |
| 63 IPC::Message* wrapped_msg = new ViewHostMsg_ForwardToWorker(*message); |
| 64 delete message; |
| 65 return sender_->Send(wrapped_msg); |
| 66 } |
| 67 |
| 68 void WebWorkerProxy::OnMessageReceived(const IPC::Message& message) { |
| 69 if (!client_) |
| 70 return; |
| 71 |
| 72 IPC_BEGIN_MESSAGE_MAP(WebWorkerProxy, message) |
| 73 IPC_MESSAGE_FORWARD(WorkerHostMsg_PostMessageToWorkerObject, |
| 74 client_, |
| 75 WebWorkerClient::PostMessageToWorkerObject) |
| 76 IPC_MESSAGE_FORWARD(WorkerHostMsg_PostExceptionToWorkerObject, |
| 77 client_, |
| 78 WebWorkerClient::PostExceptionToWorkerObject) |
| 79 IPC_MESSAGE_FORWARD(WorkerHostMsg_PostConsoleMessageToWorkerObject, |
| 80 client_, |
| 81 WebWorkerClient::PostConsoleMessageToWorkerObject) |
| 82 IPC_MESSAGE_FORWARD(WorkerHostMsg_ConfirmMessageFromWorkerObject, |
| 83 client_, |
| 84 WebWorkerClient::ConfirmMessageFromWorkerObject) |
| 85 IPC_MESSAGE_FORWARD(WorkerHostMsg_ReportPendingActivity, |
| 86 client_, |
| 87 WebWorkerClient::ReportPendingActivity) |
| 88 IPC_MESSAGE_FORWARD(WorkerHostMsg_WorkerContextDestroyed, |
| 89 client_, |
| 90 WebWorkerClient::WorkerContextDestroyed) |
| 91 IPC_END_MESSAGE_MAP() |
| 92 } |
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