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// Copyright (c) 2011 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/browser/ui/webui/workers_ui.h"
#include "base/json/json_writer.h"
#include "base/memory/ref_counted_memory.h"
#include "base/string_number_conversions.h"
#include "base/string_util.h"
#include "base/values.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/webui/chrome_url_data_manager_backend.h"
#include "chrome/browser/ui/webui/chrome_web_ui_data_source.h"
#include "chrome/common/url_constants.h"
#include "content/browser/debugger/worker_devtools_manager_io.h"
#include "content/browser/tab_contents/tab_contents.h"
#include "content/browser/worker_host/worker_process_host.h"
#include "content/common/devtools_messages.h"
#include "grit/generated_resources.h"
#include "grit/workers_resources.h"
#include "ui/base/resource/resource_bundle.h"
static const char kWorkersDataFile[] = "workers_data.json";
static const char kOpenDevToolsCommand[] = "openDevTools";
static const char kWorkerProcessHostIdField[] = "workerProcessHostId";
static const char kWorkerRouteIdField[] = "workerRouteId";
static const char kUrlField[] = "url";
static const char kNameField[] = "name";
static const char kPidField[] = "pid";
namespace {
class WorkersUIHTMLSource : public ChromeURLDataManager::DataSource {
public:
WorkersUIHTMLSource();
virtual void StartDataRequest(const std::string& path,
bool is_incognito,
int request_id);
virtual std::string GetMimeType(const std::string&) const;
private:
~WorkersUIHTMLSource() {}
void SendSharedWorkersData(int request_id);
DISALLOW_COPY_AND_ASSIGN(WorkersUIHTMLSource);
};
WorkersUIHTMLSource::WorkersUIHTMLSource()
: DataSource(chrome::kChromeUIWorkersHost, NULL) {
}
void WorkersUIHTMLSource::StartDataRequest(const std::string& path,
bool is_incognito,
int request_id) {
if (path == kWorkersDataFile) {
SendSharedWorkersData(request_id);
} else {
int idr = IDR_WORKERS_INDEX_HTML;
scoped_refptr<RefCountedStaticMemory> response(
ResourceBundle::GetSharedInstance().LoadDataResourceBytes(idr));
SendResponse(request_id, response);
}
}
std::string WorkersUIHTMLSource::GetMimeType(const std::string& path) const {
if (EndsWith(path, ".css", false))
return "text/css";
if (EndsWith(path, ".js", false))
return "application/javascript";
if (EndsWith(path, ".json", false))
return "plain/text";
return "text/html";
}
void WorkersUIHTMLSource::SendSharedWorkersData(int request_id) {
ListValue workers_list;
BrowserChildProcessHost::Iterator iter(ChildProcessInfo::WORKER_PROCESS);
for (; !iter.Done(); ++iter) {
WorkerProcessHost* worker = static_cast<WorkerProcessHost*>(*iter);
const WorkerProcessHost::Instances& instances = worker->instances();
for (WorkerProcessHost::Instances::const_iterator i = instances.begin();
i != instances.end(); ++i) {
if (!i->shared())
continue;
DictionaryValue* worker_data = new DictionaryValue();
worker_data->SetInteger(kWorkerProcessHostIdField, worker->id());
worker_data->SetInteger(kWorkerRouteIdField, i->worker_route_id());
worker_data->SetString(kUrlField, i->url().spec());
worker_data->SetString(kNameField, i->name());
worker_data->SetInteger(kPidField, worker->pid());
workers_list.Append(worker_data);
}
}
std::string json_string;
base::JSONWriter::Write(&workers_list, false, &json_string);
SendResponse(request_id, base::RefCountedString::TakeString(&json_string));
}
class WorkersDOMHandler : public WebUIMessageHandler {
public:
WorkersDOMHandler() {}
virtual ~WorkersDOMHandler() {}
private:
// WebUIMessageHandler implementation.
virtual void RegisterMessages() OVERRIDE;
// Callback for "openDevTools" message.
void HandleOpenDevTools(const ListValue* args);
DISALLOW_COPY_AND_ASSIGN(WorkersDOMHandler);
};
void WorkersDOMHandler::RegisterMessages() {
web_ui_->RegisterMessageCallback(kOpenDevToolsCommand,
NewCallback(this, &WorkersDOMHandler::HandleOpenDevTools));
}
static void OpenDevToolsOnIOThread(int worker_process_host_id,
int worker_route_id) {
WorkerDevToolsManagerIO::GetInstance()->OpenDevToolsForWorker(
worker_process_host_id, worker_route_id);
}
void WorkersDOMHandler::HandleOpenDevTools(const ListValue* args) {
std::string worker_process_host_id_str;
std::string worker_route_id_str;
int worker_process_host_id;
int worker_route_id;
CHECK(args->GetSize() == 2);
CHECK(args->GetString(0, &worker_process_host_id_str));
CHECK(args->GetString(1, &worker_route_id_str));
CHECK(base::StringToInt(worker_process_host_id_str,
&worker_process_host_id));
CHECK(base::StringToInt(worker_route_id_str, &worker_route_id));
BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, NewRunnableFunction(
&OpenDevToolsOnIOThread, worker_process_host_id, worker_route_id));
}
} // namespace
WorkersUI::WorkersUI(TabContents* contents) : ChromeWebUI(contents) {
WorkersDOMHandler* handler = new WorkersDOMHandler();
AddMessageHandler(handler);
handler->Attach(this);
WorkersUIHTMLSource* html_source = new WorkersUIHTMLSource();
// Set up the chrome://workers/ source.
Profile* profile = Profile::FromBrowserContext(contents->browser_context());
profile->GetChromeURLDataManager()->AddDataSource(html_source);
}
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