// Copyright 2014 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 EXTENSIONS_BROWSER_API_EXTENSIONS_API_CLIENT_H_
#define EXTENSIONS_BROWSER_API_EXTENSIONS_API_CLIENT_H_
#include <map>
#include "base/memory/ref_counted.h"
#include "extensions/browser/api/storage/settings_namespace.h"
template <class T>
class ObserverListThreadSafe;
namespace content {
class BrowserContext;
}
namespace extensions {
class SettingsObserver;
class SettingsStorageFactory;
class ValueStoreCache;
// Allows the embedder of the extensions module to customize its support for
// API features. The embedder must create a single instance in the browser
// process. Provides a default implementation that does nothing.
class ExtensionsAPIClient {
public:
// Construction sets the single instance.
ExtensionsAPIClient();
// Destruction clears the single instance.
virtual ~ExtensionsAPIClient();
// Returns the single instance of |this|.
static ExtensionsAPIClient* Get();
// Storage API support.
// Add any additional value store caches (e.g. for chrome.storage.managed)
// to |caches|. By default adds nothing.
virtual void AddAdditionalValueStoreCaches(
content::BrowserContext* context,
const scoped_refptr<SettingsStorageFactory>& factory,
const scoped_refptr<ObserverListThreadSafe<SettingsObserver> >& observers,
std::map<settings_namespace::Namespace, ValueStoreCache*>* caches);
// NOTE: If this interface gains too many methods (perhaps more than 20) it
// should be split into one interface per API.
};
} // namespace extensions
#endif // EXTENSIONS_BROWSER_API_EXTENSIONS_API_CLIENT_H_