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// Copyright (c) 2012 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 CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_RULES_REGISTRY_SERVICE_H__
#define CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_RULES_REGISTRY_SERVICE_H__
#include <map>
#include <string>
#include <vector>
#include "base/callback_forward.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_vector.h"
#include "chrome/browser/extensions/api/declarative/rules_registry_with_cache.h"
#include "chrome/browser/extensions/api/profile_keyed_api_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
class Profile;
namespace content {
class NotificationSource;
class NotificationSource;
}
namespace extensions {
class ContentRulesRegistry;
class RulesRegistry;
class RulesRegistryStorageDelegate;
}
namespace extensions {
// This class owns all RulesRegistries implementations of an ExtensionService.
// This class lives on the UI thread.
class RulesRegistryService : public ProfileKeyedAPI,
public content::NotificationObserver {
public:
explicit RulesRegistryService(Profile* profile);
virtual ~RulesRegistryService();
// Unregisters refptrs to concrete RulesRegistries at other objects that were
// created by us so that the RulesRegistries can be released.
virtual void Shutdown() OVERRIDE;
// ProfileKeyedAPI implementation.
static ProfileKeyedAPIFactory<RulesRegistryService>* GetFactoryInstance();
// Convenience method to get the RulesRegistryService for a profile.
static RulesRegistryService* Get(Profile* profile);
// Registers the default RulesRegistries used in Chromium.
void RegisterDefaultRulesRegistries();
// Registers a RulesRegistry and wraps it in an InitializingRulesRegistry.
void RegisterRulesRegistry(scoped_refptr<RulesRegistry> rule_registry);
// Returns the RulesRegistry for |event_name| or NULL if no such registry
// has been registered.
scoped_refptr<RulesRegistry> GetRulesRegistry(
const std::string& event_name) const;
// Accessors for each type of rules registry.
ContentRulesRegistry* content_rules_registry() const {
return content_rules_registry_;
}
// For testing.
void SimulateExtensionUnloaded(const std::string& extension_id);
private:
friend class ProfileKeyedAPIFactory<RulesRegistryService>;
// Maps event names to RuleRegistries that handle these events.
typedef std::map<std::string, scoped_refptr<RulesRegistry> > RulesRegistryMap;
// Notifies all RulesRegistries that |extension_id| was unloaded.
// It is not guaranteed that this notification is processed synchronously.
// If extensions live on another thread, the notification is posted.
void OnExtensionUnloaded(const std::string& extension_id);
// Implementation of content::NotificationObserver.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
// ProfileKeyedAPI implementation.
static const char* service_name() {
return "RulesRegistryService";
}
static const bool kServiceHasOwnInstanceInIncognito = true;
static const bool kServiceIsNULLWhileTesting = true;
RulesRegistryMap rule_registries_;
// We own the parts of the registries which need to run on the UI thread.
ScopedVector<RulesRegistryWithCache::RuleStorageOnUI> ui_parts_of_registries_;
// Weak pointer into rule_registries_ to make it easier to handle content rule
// conditions.
ContentRulesRegistry* content_rules_registry_;
content::NotificationRegistrar registrar_;
Profile* profile_;
DISALLOW_COPY_AND_ASSIGN(RulesRegistryService);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_RULES_REGISTRY_SERVICE_H__
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