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// Copyright 2013 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_SEARCH_HOTWORD_SERVICE_FACTORY_H_
#define CHROME_BROWSER_SEARCH_HOTWORD_SERVICE_FACTORY_H_
#include "base/memory/singleton.h"
#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
class HotwordService;
class Profile;
// Singleton that owns all HotwordServices and associates them with Profiles.
class HotwordServiceFactory : public BrowserContextKeyedServiceFactory {
public:
// Returns the HotwordService for |context|.
static HotwordService* GetForProfile(content::BrowserContext* context);
static HotwordServiceFactory* GetInstance();
// Returns true if the hotwording service is available for |context|.
static bool IsServiceAvailable(content::BrowserContext* context);
// Returns true if hotwording is allowed for |context|.
static bool IsHotwordAllowed(content::BrowserContext* context);
// Returns whether always-on hotwording is available.
static bool IsAlwaysOnAvailable();
// Returns the current error message for the service for |context|.
// A value of 0 indicates no error.
static int GetCurrentError(content::BrowserContext* context);
// This will kick off the monitor that calls OnUpdateAudioDevices when the
// number of audio devices changes (or is initialized). It needs to be a
// separate function so it can be called after the service is initialized
// (i.e., after startup). The monitor can't be initialized during startup
// because it would slow down startup too much so it is delayed and not
// called until it's needed by the webui in browser_options_handler.
void UpdateMicrophoneState();
private:
friend struct DefaultSingletonTraits<HotwordServiceFactory>;
HotwordServiceFactory();
~HotwordServiceFactory() override;
// Overrides from BrowserContextKeyedServiceFactory:
void RegisterProfilePrefs(
user_prefs::PrefRegistrySyncable* registry) override;
KeyedService* BuildServiceInstanceFor(
content::BrowserContext* context) const override;
DISALLOW_COPY_AND_ASSIGN(HotwordServiceFactory);
};
#endif // CHROME_BROWSER_SEARCH_HOTWORD_SERVICE_FACTORY_H_
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