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// 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 CHROME_BROWSER_METRICS_OMNIBOX_METRICS_PROVIDER_H_
#define CHROME_BROWSER_METRICS_OMNIBOX_METRICS_PROVIDER_H_
#include "base/basictypes.h"
#include "components/metrics/metrics_provider.h"
#include "components/metrics/proto/chrome_user_metrics_extension.pb.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
struct OmniboxLog;
// OmniboxMetricsProvider is responsible for filling out the |omnibox_event|
// section of the UMA proto.
class OmniboxMetricsProvider : public metrics::MetricsProvider,
public content::NotificationObserver {
public:
OmniboxMetricsProvider();
~OmniboxMetricsProvider() override;
// metrics::MetricsDataProvider:
void OnRecordingEnabled() override;
void OnRecordingDisabled() override;
void ProvideGeneralMetrics(
metrics::ChromeUserMetricsExtension* uma_proto) override;
private:
// content::NotificationObserver:
void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) override;
// Records the input text, available choices, and selected entry when the
// user uses the Omnibox to open a URL.
void RecordOmniboxOpenedURL(const OmniboxLog& log);
// Registar for receiving Omnibox event notifications.
content::NotificationRegistrar registrar_;
// Saved cache of generated Omnibox event protos, to be copied into the UMA
// proto when ProvideGeneralMetrics() is called.
metrics::ChromeUserMetricsExtension omnibox_events_cache;
DISALLOW_COPY_AND_ASSIGN(OmniboxMetricsProvider);
};
#endif // CHROME_BROWSER_METRICS_OMNIBOX_METRICS_PROVIDER_H_
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