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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.
#include "components/translate/core/browser/translate_browser_metrics.h"
#include <string>
#include "base/basictypes.h"
#include "base/metrics/histogram.h"
#include "base/metrics/sparse_histogram.h"
#include "components/language_usage_metrics/language_usage_metrics.h"
namespace translate {
namespace {
// Constant string values to indicate UMA names. All entries should have
// a corresponding index in MetricsNameIndex and an entry in |kMetricsEntries|.
const char kTranslateInitiationStatus[] =
"Translate.InitiationStatus.v2";
const char kTranslateReportLanguageDetectionError[] =
"Translate.ReportLanguageDetectionError";
const char kTranslateLocalesOnDisabledByPrefs[] =
"Translate.LocalesOnDisabledByPrefs";
const char kTranslateUndisplayableLanguage[] =
"Translate.UndisplayableLanguage";
const char kTranslateUnsupportedLanguageAtInitiation[] =
"Translate.UnsupportedLanguageAtInitiation";
struct MetricsEntry {
TranslateBrowserMetrics::MetricsNameIndex index;
const char* const name;
};
// This entry table should be updated when new UMA items are added.
const MetricsEntry kMetricsEntries[] = {
{ TranslateBrowserMetrics::UMA_INITIATION_STATUS,
kTranslateInitiationStatus },
{ TranslateBrowserMetrics::UMA_LANGUAGE_DETECTION_ERROR,
kTranslateReportLanguageDetectionError },
{ TranslateBrowserMetrics::UMA_LOCALES_ON_DISABLED_BY_PREFS,
kTranslateLocalesOnDisabledByPrefs },
{ TranslateBrowserMetrics::UMA_UNDISPLAYABLE_LANGUAGE,
kTranslateUndisplayableLanguage },
{ TranslateBrowserMetrics::UMA_UNSUPPORTED_LANGUAGE_AT_INITIATION,
kTranslateUnsupportedLanguageAtInitiation },
};
static_assert(arraysize(kMetricsEntries) == TranslateBrowserMetrics::UMA_MAX,
"kMetricsEntries should have UMA_MAX elements");
} // namespace
namespace TranslateBrowserMetrics {
void ReportInitiationStatus(InitiationStatusType type) {
UMA_HISTOGRAM_ENUMERATION(kTranslateInitiationStatus,
type,
INITIATION_STATUS_MAX);
}
void ReportLanguageDetectionError() {
UMA_HISTOGRAM_BOOLEAN(kTranslateReportLanguageDetectionError, true);
}
void ReportLocalesOnDisabledByPrefs(const std::string& locale) {
UMA_HISTOGRAM_SPARSE_SLOWLY(
kTranslateLocalesOnDisabledByPrefs,
language_usage_metrics::LanguageUsageMetrics::ToLanguageCode(locale));
}
void ReportUndisplayableLanguage(const std::string& language) {
int language_code =
language_usage_metrics::LanguageUsageMetrics::ToLanguageCode(language);
UMA_HISTOGRAM_SPARSE_SLOWLY(kTranslateUndisplayableLanguage,
language_code);
}
void ReportUnsupportedLanguageAtInitiation(const std::string& language) {
int language_code =
language_usage_metrics::LanguageUsageMetrics::ToLanguageCode(language);
UMA_HISTOGRAM_SPARSE_SLOWLY(kTranslateUnsupportedLanguageAtInitiation,
language_code);
}
const char* GetMetricsName(MetricsNameIndex index) {
for (size_t i = 0; i < arraysize(kMetricsEntries); ++i) {
if (kMetricsEntries[i].index == index)
return kMetricsEntries[i].name;
}
NOTREACHED();
return NULL;
}
} // namespace TranslateBrowserMetrics
} // namespace translate
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