ash/metrics/histogram_macros.h

// Copyright 2019 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 ASH_METRICS_HISTOGRAM_MACROS_H_
#define ASH_METRICS_HISTOGRAM_MACROS_H_

#include "ash/ash_export.h"
#include "base/metrics/histogram_macros.h"

// Use these instead of UMA_HISTOGRAM_PERCENTAGE if these histogram needs to be
// recorded separately in tablet/clamshell mode.
// TODO(oshima): Create a macro which record both that works with presubmit.
// crbug.com/923159.

#define UMA_HISTOGRAM_PERCENTAGE_IN_TABLET(name, ...) \
  do {                                                \
    if (ash::InTabletMode())                          \
      UMA_HISTOGRAM_PERCENTAGE(name, __VA_ARGS__);    \
  } while (0)

#define UMA_HISTOGRAM_PERCENTAGE_IN_SPLITVIEW(name, ...) \
  do {                                                   \
    if (ash::IsInSplitView())                            \
      UMA_HISTOGRAM_PERCENTAGE(name, __VA_ARGS__);       \
  } while (0)

#define UMA_HISTOGRAM_PERCENTAGE_IN_TABLET_NON_SPLITVIEW(name, ...) \
  do {                                                              \
    if (ash::InTabletMode() && !ash::IsInSplitView())               \
      UMA_HISTOGRAM_PERCENTAGE(name, __VA_ARGS__);                  \
  } while (0)

#define UMA_HISTOGRAM_PERCENTAGE_IN_CLAMSHELL(name, ...) \
  do {                                                   \
    if (!ash::InTabletMode())                            \
      UMA_HISTOGRAM_PERCENTAGE(name, __VA_ARGS__);       \
  } while (0)

namespace ash {

ASH_EXPORT bool InTabletMode();
ASH_EXPORT bool IsInSplitView();

}  // namespace ash

#endif  // ASH_METRICS_HISTOGRAM_MACROS_H_