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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 COMPONENTS_OMNIBOX_BROWSER_OMNIBOX_METRICS_PROVIDER_H_
#define COMPONENTS_OMNIBOX_BROWSER_OMNIBOX_METRICS_PROVIDER_H_
#include <memory>
#include "base/macros.h"
#include "components/metrics/metrics_provider.h"
#include "components/omnibox/browser/omnibox_event_global_tracker.h"
#include "third_party/metrics_proto/chrome_user_metrics_extension.pb.h"
struct OmniboxLog;
// OmniboxMetricsProvider is responsible for filling out the |omnibox_event|
// section of the UMA proto.
class OmniboxMetricsProvider : public metrics::MetricsProvider {
public:
explicit OmniboxMetricsProvider(
const base::Callback<bool(void)>& is_off_the_record_callback);
~OmniboxMetricsProvider() override;
// metrics::MetricsDataProvider:
void OnRecordingEnabled() override;
void OnRecordingDisabled() override;
void ProvideCurrentSessionData(
metrics::ChromeUserMetricsExtension* uma_proto) override;
private:
// Called when a URL is opened from the Omnibox.
void OnURLOpenedFromOmnibox(OmniboxLog* log);
// Records the input text, available choices, and selected entry when the
// user uses the Omnibox to open a URL.
void RecordOmniboxOpenedURL(const OmniboxLog& log);
// Subscription for receiving Omnibox event callbacks.
std::unique_ptr<base::CallbackList<void(OmniboxLog*)>::Subscription>
subscription_;
// Saved cache of generated Omnibox event protos, to be copied into the UMA
// proto when ProvideCurrentSessionData() is called.
metrics::ChromeUserMetricsExtension omnibox_events_cache;
// Callback passed in from the embedder that returns whether the user is
// currently operating off-the-record.
const base::Callback<bool(void)> is_off_the_record_callback_;
DISALLOW_COPY_AND_ASSIGN(OmniboxMetricsProvider);
};
#endif // COMPONENTS_OMNIBOX_BROWSER_OMNIBOX_METRICS_PROVIDER_H_
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