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// Copyright 2017 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.
#ifndef IOS_WEB_VIEW_INTERNAL_APP_APPLICATION_CONTEXT_H_
#define IOS_WEB_VIEW_INTERNAL_APP_APPLICATION_CONTEXT_H_
#include <memory>
#include <string>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/sequence_checker.h"
namespace base {
template <typename T>
struct DefaultSingletonTraits;
class FilePath;
class SequencedTaskRunner;
}
namespace net {
class URLRequestContextGetter;
}
namespace net_log {
class ChromeNetLog;
}
class PrefService;
namespace ios_web_view {
class WebViewIOThread;
// Exposes application global state objects.
class ApplicationContext {
public:
static ApplicationContext* GetInstance();
// Gets the preferences associated with this application.
PrefService* GetLocalState();
// Gets the URL request context associated with this application.
net::URLRequestContextGetter* GetSystemURLRequestContext();
// Gets the locale used by the application.
const std::string& GetApplicationLocale();
// Creates state tied to application threads. It is expected this will be
// called from web::WebMainParts::PreCreateThreads.
void PreCreateThreads();
// Saves application context state if |local_state_| exists. This should be
// called during shutdown to save application state.
void SaveState();
// Destroys state tied to application threads. It is expected this will be
// called from web::WebMainParts::PostDestroyThreads.
void PostDestroyThreads();
private:
friend struct base::DefaultSingletonTraits<ApplicationContext>;
ApplicationContext();
~ApplicationContext();
// Gets the ChromeNetLog.
net_log::ChromeNetLog* GetNetLog();
// Gets the WebViewIOThread.
WebViewIOThread* GetWebViewIOThread();
// Returns the path to the application level preferences.
static base::FilePath GetLocalStatePath();
// Sets the locale used by the application.
void SetApplicationLocale(const std::string& locale);
SEQUENCE_CHECKER(sequence_checker_);
std::unique_ptr<PrefService> local_state_;
std::unique_ptr<net_log::ChromeNetLog> net_log_;
std::unique_ptr<WebViewIOThread> web_view_io_thread_;
std::string application_locale_;
// Sequenced task runner for local state related I/O tasks.
const scoped_refptr<base::SequencedTaskRunner> local_state_task_runner_;
DISALLOW_COPY_AND_ASSIGN(ApplicationContext);
};
} // namespace ios_web_view
#endif // IOS_WEB_VIEW_INTERNAL_APP_APPLICATION_CONTEXT_H_