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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/accessibility/text_formatting_metrics_android.h"
#include "base/metrics/histogram_macros.h"
namespace content {
namespace {
constexpr base::TimeDelta kMinDuration = base::Microseconds(1);
constexpr base::TimeDelta kMaxDuration = base::Milliseconds(10);
constexpr int kDurationBucketCount = 100;
void RecordTextLength(int length, bool has_style_data) {
if (has_style_data) {
UMA_HISTOGRAM_COUNTS_1000(kTextFormattingTextLengthMetric, length);
} else {
UMA_HISTOGRAM_COUNTS_1000(kTextFormattingTextLengthNoStyleDataMetric,
length);
}
}
void RecordDuration(TextFormattingMetric metric,
base::TimeDelta duration,
bool has_style_data) {
switch (metric) {
case TextFormattingMetric::kTotalDuration:
if (has_style_data) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingTotalDurationMetric, duration, kMinDuration,
kMaxDuration, kDurationBucketCount);
} else {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingTotalDurationNoStyleDataMetric, duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
}
break;
case TextFormattingMetric::kCheckAXFocusDuration:
if (has_style_data) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingCheckAXFocusDurationMetric, duration, kMinDuration,
kMaxDuration, kDurationBucketCount);
} else {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingCheckAXFocusDurationNoStyleDataMetric, duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
}
break;
case TextFormattingMetric::kGetTextContentDuration:
if (has_style_data) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingGetTextContentDurationMetric, duration, kMinDuration,
kMaxDuration, kDurationBucketCount);
} else {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingGetTextContentDurationNoStyleDataMetric, duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
}
break;
case TextFormattingMetric::kToJavaDataDuration:
if (has_style_data) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingToJavaDataDurationMetric, duration, kMinDuration,
kMaxDuration, kDurationBucketCount);
} else {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingToJavaDataDurationNoStyleDataMetric, duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
}
break;
case TextFormattingMetric::kSetAniTextDuration:
if (has_style_data) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingSetAniTextDurationMetric, duration, kMinDuration,
kMaxDuration, kDurationBucketCount);
} else {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingSetAniTextDurationNoStyleDataMetric, duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
}
break;
}
}
} // namespace
TextFormattingMetricsRecorder::TextFormattingMetricsRecorder() {
// Reserve enough for all TextFormattingMetric values.
timers_.reserve(5);
}
TextFormattingMetricsRecorder::~TextFormattingMetricsRecorder() = default;
void TextFormattingMetricsRecorder::StartTimer(TextFormattingMetric metric) {
timers_[metric];
}
void TextFormattingMetricsRecorder::StopTimer(TextFormattingMetric metric) {
CHECK(timers_.contains(metric));
auto& [timer, duration] = timers_.at(metric);
duration = timer.Elapsed();
}
void TextFormattingMetricsRecorder::EmitHistograms(int text_length,
bool has_style_data) const {
RecordTextLength(text_length, has_style_data);
for (const auto& entry : timers_) {
if (const std::optional<base::TimeDelta>& duration = entry.second.second) {
RecordDuration(entry.first, *duration, has_style_data);
}
}
}
base::TimeDelta TextFormattingMetricsRecorder::GetTotalDuration() const {
CHECK(timers_.contains(TextFormattingMetric::kTotalDuration));
const auto& [timer, duration] =
timers_.at(TextFormattingMetric::kTotalDuration);
return duration ? *duration : timer.Elapsed();
}
void RecordTextFormattingRangeCountsForTextLengthHistogram(
std::u16string_view text,
int ranges_count) {
const size_t length = text.length();
if (length == 0) {
UMA_HISTOGRAM_COUNTS_1000(kTextFormattingRangesCountForTextLength0Metric,
ranges_count);
} else if (length <= 10) {
UMA_HISTOGRAM_COUNTS_1000(
kTextFormattingRangesCountForTextLength1To10Metric, ranges_count);
} else if (length <= 25) {
UMA_HISTOGRAM_COUNTS_1000(
kTextFormattingRangesCountForTextLength11To25Metric, ranges_count);
} else if (length <= 50) {
UMA_HISTOGRAM_COUNTS_1000(
kTextFormattingRangesCountForTextLength26To50Metric, ranges_count);
} else if (length <= 100) {
UMA_HISTOGRAM_COUNTS_1000(
kTextFormattingRangesCountForTextLength51To100Metric, ranges_count);
} else if (length <= 250) {
UMA_HISTOGRAM_COUNTS_1000(
kTextFormattingRangesCountForTextLength101To250Metric, ranges_count);
} else if (length <= 500) {
UMA_HISTOGRAM_COUNTS_1000(
kTextFormattingRangesCountForTextLength251To500Metric, ranges_count);
} else if (length <= 1000) {
UMA_HISTOGRAM_COUNTS_1000(
kTextFormattingRangesCountForTextLength501To1000Metric, ranges_count);
} else {
UMA_HISTOGRAM_COUNTS_1000(
kTextFormattingRangesCountForTextLengthOver1000Metric, ranges_count);
}
UMA_HISTOGRAM_COUNTS_1000(kTextFormattingRangesTotalCountMetric,
ranges_count);
}
void RecordTextFormattingDurationForRangeCountHistogram(
int ranges_count,
base::TimeDelta total_duration) {
if (ranges_count == 0) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingDurationForRangeCount0Metric, total_duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
} else if (ranges_count <= 5) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingDurationForRangeCount1To5Metric, total_duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
} else if (ranges_count <= 10) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingDurationForRangeCount6To10Metric, total_duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
} else if (ranges_count <= 20) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingDurationForRangeCount11To20Metric, total_duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
} else if (ranges_count <= 40) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingDurationForRangeCount21To40Metric, total_duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
} else if (ranges_count <= 80) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingDurationForRangeCount41To80Metric, total_duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
} else if (ranges_count <= 160) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingDurationForRangeCount81To160Metric, total_duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
} else if (ranges_count <= 320) {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingDurationForRangeCount161To320Metric, total_duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
} else {
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
kTextFormattingDurationForRangeCountOver320Metric, total_duration,
kMinDuration, kMaxDuration, kDurationBucketCount);
}
}
} // namespace content
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