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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/task_manager/task_manager_metrics_recorder.h"
#include "base/metrics/histogram_functions.h"
#include "base/metrics/histogram_macros.h"
#include "base/strings/stringprintf.h"
namespace task_manager {
// Records a new entry for the "TaskManager.Opened" UMA metric. If StartAction
// is kOther, no event is recorded.
void RecordNewOpenEvent(StartAction type) {
if (type == StartAction::kOther) {
return;
}
UMA_HISTOGRAM_ENUMERATION(kStartActionHistogram, type);
}
void RecordCloseEvent(const base::TimeTicks& start_time,
const base::TimeTicks& end_time) {
UMA_HISTOGRAM_LONG_TIMES_100(kClosedElapsedTimeHistogram,
end_time - start_time);
}
void RecordTabSwitchEvent(CategoryRecord record,
const base::TimeDelta& elapsed_time) {
static const std::array<std::string, 5> kCategoryToString = {
"Other", "TabsAndExtensions", "Browser", "System", "All"};
// Out of bounds check.
CHECK(static_cast<size_t>(record) < kCategoryToString.size());
const auto histogram_name = base::StringPrintf(
kClosedTabElapsedTimeHistogram,
kCategoryToString[static_cast<size_t>(record)].c_str());
base::UmaHistogramLongTimes100(histogram_name, elapsed_time);
}
void RecordEndProcessEvent(const base::TimeTicks& start_time,
const base::TimeTicks& end_time,
size_t end_process_count) {
constexpr static std::array<std::string, 5> kEndProcessCountToString = {
"First", "Second", "Third", "Fourth", "Fifth"};
// Only record the first five end process events per task manager session.
if (end_process_count > 0 &&
end_process_count <= kEndProcessCountToString.size()) {
// Build the histogram name.
const auto histogram_name = base::StringPrintf(
kTimeToEndProcessHistogram,
kEndProcessCountToString[end_process_count - 1].c_str());
// Record the event.
base::UmaHistogramLongTimes100(histogram_name, end_time - start_time);
}
}
} // namespace task_manager
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