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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/webworkerclient_proxy.h"
#include "base/command_line.h"
#include "base/message_loop.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/file_system/file_system_dispatcher.h"
#include "chrome/common/file_system/webfilesystem_callback_dispatcher.h"
#include "chrome/common/webmessageportchannel_impl.h"
#include "chrome/common/worker_messages.h"
#include "chrome/renderer/webworker_proxy.h"
#include "chrome/worker/webworker_stub_base.h"
#include "chrome/worker/worker_thread.h"
#include "chrome/worker/worker_webapplicationcachehost_impl.h"
#include "ipc/ipc_logging.h"
#include "third_party/WebKit/WebKit/chromium/public/WebFileSystemCallbacks.h"
#include "third_party/WebKit/WebKit/chromium/public/WebString.h"
#include "third_party/WebKit/WebKit/chromium/public/WebURL.h"
#include "third_party/WebKit/WebKit/chromium/public/WebWorker.h"
using WebKit::WebApplicationCacheHost;
using WebKit::WebMessagePortChannel;
using WebKit::WebMessagePortChannelArray;
using WebKit::WebString;
using WebKit::WebWorker;
using WebKit::WebWorkerClient;
// How long to wait for worker to finish after it's been told to terminate.
#define kMaxTimeForRunawayWorkerMs 3000
WebWorkerClientProxy::WebWorkerClientProxy(int route_id,
WebWorkerStubBase* stub)
: route_id_(route_id),
appcache_host_id_(0),
stub_(stub),
ALLOW_THIS_IN_INITIALIZER_LIST(kill_process_factory_(this)) {
}
WebWorkerClientProxy::~WebWorkerClientProxy() {
}
void WebWorkerClientProxy::postMessageToWorkerObject(
const WebString& message,
const WebMessagePortChannelArray& channels) {
std::vector<int> message_port_ids(channels.size());
std::vector<int> routing_ids(channels.size());
for (size_t i = 0; i < channels.size(); ++i) {
WebMessagePortChannelImpl* webchannel =
static_cast<WebMessagePortChannelImpl*>(channels[i]);
message_port_ids[i] = webchannel->message_port_id();
webchannel->QueueMessages();
DCHECK(message_port_ids[i] != MSG_ROUTING_NONE);
routing_ids[i] = MSG_ROUTING_NONE;
}
Send(new WorkerMsg_PostMessage(
route_id_, message, message_port_ids, routing_ids));
}
void WebWorkerClientProxy::postExceptionToWorkerObject(
const WebString& error_message,
int line_number,
const WebString& source_url) {
Send(new WorkerHostMsg_PostExceptionToWorkerObject(
route_id_, error_message, line_number, source_url));
}
void WebWorkerClientProxy::postConsoleMessageToWorkerObject(
int source,
int type,
int level,
const WebString& message,
int line_number,
const WebString& source_url) {
WorkerHostMsg_PostConsoleMessageToWorkerObject_Params params;
params.source_identifier = source;
params.message_type = type;
params.message_level = level;
params.message = message;
params.line_number = line_number;
params.source_url = source_url;
Send(new WorkerHostMsg_PostConsoleMessageToWorkerObject(route_id_, params));
}
void WebWorkerClientProxy::confirmMessageFromWorkerObject(
bool has_pending_activity) {
Send(new WorkerHostMsg_ConfirmMessageFromWorkerObject(
route_id_, has_pending_activity));
}
void WebWorkerClientProxy::reportPendingActivity(bool has_pending_activity) {
Send(new WorkerHostMsg_ReportPendingActivity(
route_id_, has_pending_activity));
}
void WebWorkerClientProxy::workerContextClosed() {
Send(new WorkerHostMsg_WorkerContextClosed(route_id_));
}
void WebWorkerClientProxy::workerContextDestroyed() {
Send(new WorkerHostMsg_WorkerContextDestroyed(route_id_));
// Tell the stub that the worker has shutdown - frees this object.
if (stub_)
stub_->Shutdown();
}
WebKit::WebWorker* WebWorkerClientProxy::createWorker(
WebKit::WebWorkerClient* client) {
return new WebWorkerProxy(client, WorkerThread::current(),
0, appcache_host_id_);
}
WebApplicationCacheHost* WebWorkerClientProxy::createApplicationCacheHost(
WebKit::WebApplicationCacheHostClient* client) {
WorkerWebApplicationCacheHostImpl* host =
new WorkerWebApplicationCacheHostImpl(stub_->appcache_init_info(),
client);
// Remember the id of the instance we create so we have access to that
// value when creating nested dedicated workers in createWorker.
appcache_host_id_ = host->host_id();
return host;
}
void WebWorkerClientProxy::openFileSystem(
WebKit::WebFileSystem::Type type,
long long size,
WebKit::WebFileSystemCallbacks* callbacks) {
ChildThread::current()->file_system_dispatcher()->OpenFileSystem(
stub_->url().GetOrigin(), static_cast<fileapi::FileSystemType>(type),
size, new WebFileSystemCallbackDispatcher(callbacks));
}
bool WebWorkerClientProxy::Send(IPC::Message* message) {
return WorkerThread::current()->Send(message);
}
void WebWorkerClientProxy::EnsureWorkerContextTerminates() {
// Avoid a worker doing a while(1) from never exiting.
if (CommandLine::ForCurrentProcess()->HasSwitch(
switches::kWebWorkerShareProcesses)) {
// Can't kill the process since there could be workers from other
// renderer process.
NOTIMPLEMENTED();
return;
}
// This shuts down the process cleanly from the perspective of the browser
// process, and avoids the crashed worker infobar from appearing to the new
// page. It's ok to post several of theese, because the first executed task
// will exit the message loop and subsequent ones won't be executed.
MessageLoop::current()->PostDelayedTask(FROM_HERE,
kill_process_factory_.NewRunnableMethod(
&WebWorkerClientProxy::workerContextDestroyed),
kMaxTimeForRunawayWorkerMs);
}
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