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// Copyright (c) 2009 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 "chrome/worker/websharedworker_stub.h"
#include "chrome/common/child_thread.h"
#include "chrome/common/file_system/file_system_dispatcher.h"
#include "chrome/common/webmessageportchannel_impl.h"
#include "chrome/common/worker_messages.h"
#include "third_party/WebKit/WebKit/chromium/public/WebSharedWorker.h"
#include "third_party/WebKit/WebKit/chromium/public/WebString.h"
#include "third_party/WebKit/WebKit/chromium/public/WebURL.h"
WebSharedWorkerStub::WebSharedWorkerStub(
const string16& name, int route_id,
const WorkerAppCacheInitInfo& appcache_init_info)
: WebWorkerStubBase(route_id, appcache_init_info),
name_(name),
started_(false) {
// TODO(atwilson): Add support for NaCl when they support MessagePorts.
impl_ = WebKit::WebSharedWorker::create(client());
}
WebSharedWorkerStub::~WebSharedWorkerStub() {
impl_->clientDestroyed();
}
void WebSharedWorkerStub::OnMessageReceived(const IPC::Message& message) {
IPC_BEGIN_MESSAGE_MAP(WebSharedWorkerStub, message)
IPC_MESSAGE_HANDLER(WorkerMsg_StartWorkerContext, OnStartWorkerContext)
IPC_MESSAGE_HANDLER(WorkerMsg_TerminateWorkerContext,
OnTerminateWorkerContext)
IPC_MESSAGE_HANDLER(WorkerMsg_Connect, OnConnect)
IPC_END_MESSAGE_MAP()
}
void WebSharedWorkerStub::OnChannelError() {
OnTerminateWorkerContext();
}
void WebSharedWorkerStub::OnStartWorkerContext(
const GURL& url, const string16& user_agent, const string16& source_code) {
// Ignore multiple attempts to start this worker (can happen if two pages
// try to start it simultaneously).
if (started_)
return;
impl_->startWorkerContext(url, name_, user_agent, source_code, 0);
started_ = true;
url_ = url;
// Process any pending connections.
for (PendingConnectInfoList::const_iterator iter = pending_connects_.begin();
iter != pending_connects_.end();
++iter) {
OnConnect(iter->first, iter->second);
}
pending_connects_.clear();
}
void WebSharedWorkerStub::OnConnect(int sent_message_port_id, int routing_id) {
if (started_) {
WebKit::WebMessagePortChannel* channel =
new WebMessagePortChannelImpl(routing_id, sent_message_port_id);
impl_->connect(channel, NULL);
} 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.
PendingConnectInfo pending_connect(sent_message_port_id, routing_id);
pending_connects_.push_back(pending_connect);
}
}
void WebSharedWorkerStub::OnTerminateWorkerContext() {
impl_->terminateWorkerContext();
// Call the client to make sure context exits.
EnsureWorkerContextTerminates();
started_ = false;
}
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