1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "components/translate/core/browser/translate_browser_metrics.h" 6 7 #include <string> 8 9 #include "base/basictypes.h" 10 #include "base/metrics/histogram.h" 11 #include "base/metrics/sparse_histogram.h" 12 #include "components/language_usage_metrics/language_usage_metrics.h" 13 14 namespace { 15 16 // Constant string values to indicate UMA names. All entries should have 17 // a corresponding index in MetricsNameIndex and an entry in |kMetricsEntries|. 18 const char kTranslateInitiationStatus[] = 19 "Translate.InitiationStatus.v2"; 20 const char kTranslateReportLanguageDetectionError[] = 21 "Translate.ReportLanguageDetectionError"; 22 const char kTranslateLocalesOnDisabledByPrefs[] = 23 "Translate.LocalesOnDisabledByPrefs"; 24 const char kTranslateUndisplayableLanguage[] = 25 "Translate.UndisplayableLanguage"; 26 const char kTranslateUnsupportedLanguageAtInitiation[] = 27 "Translate.UnsupportedLanguageAtInitiation"; 28 29 struct MetricsEntry { 30 TranslateBrowserMetrics::MetricsNameIndex index; 31 const char* const name; 32 }; 33 34 // This entry table should be updated when new UMA items are added. 35 const MetricsEntry kMetricsEntries[] = { 36 { TranslateBrowserMetrics::UMA_INITIATION_STATUS, 37 kTranslateInitiationStatus }, 38 { TranslateBrowserMetrics::UMA_LANGUAGE_DETECTION_ERROR, 39 kTranslateReportLanguageDetectionError }, 40 { TranslateBrowserMetrics::UMA_LOCALES_ON_DISABLED_BY_PREFS, 41 kTranslateLocalesOnDisabledByPrefs }, 42 { TranslateBrowserMetrics::UMA_UNDISPLAYABLE_LANGUAGE, 43 kTranslateUndisplayableLanguage }, 44 { TranslateBrowserMetrics::UMA_UNSUPPORTED_LANGUAGE_AT_INITIATION, 45 kTranslateUnsupportedLanguageAtInitiation }, 46 }; 47 48 COMPILE_ASSERT(arraysize(kMetricsEntries) == TranslateBrowserMetrics::UMA_MAX, 49 arraysize_of_kMetricsEntries_should_be_UMA_MAX); 50 51 } // namespace 52 53 namespace TranslateBrowserMetrics { 54 55 void ReportInitiationStatus(InitiationStatusType type) { 56 UMA_HISTOGRAM_ENUMERATION(kTranslateInitiationStatus, 57 type, 58 INITIATION_STATUS_MAX); 59 } 60 61 void ReportLanguageDetectionError() { 62 UMA_HISTOGRAM_BOOLEAN(kTranslateReportLanguageDetectionError, true); 63 } 64 65 void ReportLocalesOnDisabledByPrefs(const std::string& locale) { 66 UMA_HISTOGRAM_SPARSE_SLOWLY( 67 kTranslateLocalesOnDisabledByPrefs, 68 language_usage_metrics::LanguageUsageMetrics::ToLanguageCode(locale)); 69 } 70 71 void ReportUndisplayableLanguage(const std::string& language) { 72 int language_code = 73 language_usage_metrics::LanguageUsageMetrics::ToLanguageCode(language); 74 UMA_HISTOGRAM_SPARSE_SLOWLY(kTranslateUndisplayableLanguage, 75 language_code); 76 } 77 78 void ReportUnsupportedLanguageAtInitiation(const std::string& language) { 79 int language_code = 80 language_usage_metrics::LanguageUsageMetrics::ToLanguageCode(language); 81 UMA_HISTOGRAM_SPARSE_SLOWLY(kTranslateUnsupportedLanguageAtInitiation, 82 language_code); 83 } 84 85 const char* GetMetricsName(MetricsNameIndex index) { 86 for (size_t i = 0; i < arraysize(kMetricsEntries); ++i) { 87 if (kMetricsEntries[i].index == index) 88 return kMetricsEntries[i].name; 89 } 90 NOTREACHED(); 91 return NULL; 92 } 93 94 } // namespace TranslateBrowserMetrics 95