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// Copyright 2014 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/ui/webui/ash/power_ui/power_ui.h"
#include <stddef.h>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "base/check.h"
#include "base/compiler_specific.h"
#include "base/containers/circular_deque.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/strings/string_number_conversions.h"
#include "base/time/time.h"
#include "base/values.h"
#include "chrome/browser/ash/power/power_data_collector.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/browser_resources.h"
#include "chrome/grit/generated_resources.h"
#include "content/public/browser/web_ui.h"
#include "content/public/browser/web_ui_data_source.h"
#include "content/public/browser/web_ui_message_handler.h"
#include "ui/base/webui/web_ui_util.h"
#include "ui/webui/webui_util.h"
namespace ash {
namespace {
const char kRequestBatteryChargeDataCallback[] = "requestBatteryChargeData";
const char kRequestCpuIdleDataCallback[] = "requestCpuIdleData";
const char kRequestCpuFreqDataCallback[] = "requestCpuFreqData";
class PowerMessageHandler : public content::WebUIMessageHandler {
public:
PowerMessageHandler();
~PowerMessageHandler() override;
// WebUIMessageHandler implementation.
void RegisterMessages() override;
private:
void OnGetBatteryChargeData(const base::Value::List& value);
void OnGetCpuIdleData(const base::Value::List& value);
void OnGetCpuFreqData(const base::Value::List& value);
base::Value::List GetJsStateOccupancyData(
const std::vector<CpuDataCollector::StateOccupancySampleDeque>& data,
const std::vector<std::string>& state_names);
base::Value::List GetJsSystemResumedData();
};
PowerMessageHandler::PowerMessageHandler() = default;
PowerMessageHandler::~PowerMessageHandler() = default;
void PowerMessageHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback(
kRequestBatteryChargeDataCallback,
base::BindRepeating(&PowerMessageHandler::OnGetBatteryChargeData,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
kRequestCpuIdleDataCallback,
base::BindRepeating(&PowerMessageHandler::OnGetCpuIdleData,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
kRequestCpuFreqDataCallback,
base::BindRepeating(&PowerMessageHandler::OnGetCpuFreqData,
base::Unretained(this)));
}
void PowerMessageHandler::OnGetBatteryChargeData(
const base::Value::List& args) {
CHECK_EQ(1u, args.size());
AllowJavascript();
const base::circular_deque<PowerDataCollector::PowerSupplySample>&
power_supply = PowerDataCollector::Get()->power_supply_data();
base::Value::List js_power_supply_data;
for (size_t i = 0; i < power_supply.size(); ++i) {
const PowerDataCollector::PowerSupplySample& sample = power_supply[i];
base::Value::Dict element;
element.Set("batteryPercent", sample.battery_percent);
element.Set("batteryDischargeRate", sample.battery_discharge_rate);
element.Set("externalPower", sample.external_power);
element.Set("time", sample.time.InMillisecondsFSinceUnixEpoch());
js_power_supply_data.Append(std::move(element));
}
base::Value::List js_system_resumed_data = GetJsSystemResumedData();
base::Value::Dict data;
data.Set("powerSupplyData", std::move(js_power_supply_data));
data.Set("systemResumedData", std::move(js_system_resumed_data));
const base::Value& callback_id = args[0];
ResolveJavascriptCallback(callback_id, data);
}
void PowerMessageHandler::OnGetCpuIdleData(const base::Value::List& args) {
CHECK_EQ(1u, args.size());
AllowJavascript();
const CpuDataCollector& cpu_data_collector =
PowerDataCollector::Get()->cpu_data_collector();
const std::vector<CpuDataCollector::StateOccupancySampleDeque>& idle_data =
cpu_data_collector.cpu_idle_state_data();
const std::vector<std::string>& idle_state_names =
cpu_data_collector.cpu_idle_state_names();
base::Value::List js_idle_data =
GetJsStateOccupancyData(idle_data, idle_state_names);
base::Value::List js_system_resumed_data = GetJsSystemResumedData();
base::Value::Dict data;
data.Set("idleStateData", std::move(js_idle_data));
data.Set("systemResumedData", std::move(js_system_resumed_data));
const base::Value& callback_id = args[0];
ResolveJavascriptCallback(callback_id, data);
}
void PowerMessageHandler::OnGetCpuFreqData(const base::Value::List& args) {
CHECK_EQ(1u, args.size());
AllowJavascript();
const CpuDataCollector& cpu_data_collector =
PowerDataCollector::Get()->cpu_data_collector();
const std::vector<CpuDataCollector::StateOccupancySampleDeque>& freq_data =
cpu_data_collector.cpu_freq_state_data();
const std::vector<std::string>& freq_state_names =
cpu_data_collector.cpu_freq_state_names();
base::Value::List js_freq_data =
GetJsStateOccupancyData(freq_data, freq_state_names);
base::Value::List js_system_resumed_data = GetJsSystemResumedData();
base::Value::Dict data;
data.Set("freqStateData", std::move(js_freq_data));
data.Set("systemResumedData", std::move(js_system_resumed_data));
const base::Value& callback_id = args[0];
ResolveJavascriptCallback(callback_id, data);
}
base::Value::List PowerMessageHandler::GetJsSystemResumedData() {
base::Value::List data;
const base::circular_deque<PowerDataCollector::SystemResumedSample>&
system_resumed = PowerDataCollector::Get()->system_resumed_data();
for (size_t i = 0; i < system_resumed.size(); ++i) {
const PowerDataCollector::SystemResumedSample& sample = system_resumed[i];
base::Value::Dict element;
element.Set("sleepDuration", sample.sleep_duration.InMillisecondsF());
element.Set("time", sample.time.InMillisecondsFSinceUnixEpoch());
data.Append(std::move(element));
}
return data;
}
base::Value::List PowerMessageHandler::GetJsStateOccupancyData(
const std::vector<CpuDataCollector::StateOccupancySampleDeque>& data,
const std::vector<std::string>& state_names) {
base::Value::List js_data;
for (unsigned int cpu = 0; cpu < data.size(); ++cpu) {
const CpuDataCollector::StateOccupancySampleDeque& sample_deque = data[cpu];
base::Value::List js_sample_list;
for (unsigned int i = 0; i < sample_deque.size(); ++i) {
const CpuDataCollector::StateOccupancySample& sample = sample_deque[i];
base::Value::Dict js_sample;
js_sample.Set("time", sample.time.InMillisecondsFSinceUnixEpoch());
js_sample.Set("cpuOnline", sample.cpu_online);
base::Value::Dict state_dict;
for (size_t index = 0; index < sample.time_in_state.size(); ++index) {
state_dict.Set(state_names[index],
sample.time_in_state[index].InMillisecondsF());
}
js_sample.Set("timeInState", std::move(state_dict));
js_sample_list.Append(std::move(js_sample));
}
js_data.Append(std::move(js_sample_list));
}
return js_data;
}
} // namespace
PowerUI::PowerUI(content::WebUI* web_ui) : content::WebUIController(web_ui) {
web_ui->AddMessageHandler(std::make_unique<PowerMessageHandler>());
content::WebUIDataSource* html = content::WebUIDataSource::CreateAndAdd(
Profile::FromWebUI(web_ui), chrome::kChromeUIPowerHost);
static constexpr webui::LocalizedString kStrings[] = {
{"titleText", IDS_ABOUT_POWER_TITLE},
{"showButton", IDS_ABOUT_POWER_SHOW_BUTTON},
{"hideButton", IDS_ABOUT_POWER_HIDE_BUTTON},
{"reloadButton", IDS_ABOUT_POWER_RELOAD_BUTTON},
{"notEnoughDataAvailableYet", IDS_ABOUT_POWER_NOT_ENOUGH_DATA},
{"systemSuspended", IDS_ABOUT_POWER_SYSTEM_SUSPENDED},
{"invalidData", IDS_ABOUT_POWER_INVALID},
{"offlineText", IDS_ABOUT_POWER_OFFLINE},
{"batteryChargeSectionTitle",
IDS_ABOUT_POWER_BATTERY_CHARGE_SECTION_TITLE},
{"batteryChargePercentageHeader",
IDS_ABOUT_POWER_BATTERY_CHARGE_PERCENTAGE_HEADER},
{"batteryDischargeRateHeader",
IDS_ABOUT_POWER_BATTERY_DISCHARGE_RATE_HEADER},
{"dischargeRateLegendText", IDS_ABOUT_POWER_DISCHARGE_RATE_LEGEND_TEXT},
{"movingAverageLegendText", IDS_ABOUT_POWER_MOVING_AVERAGE_LEGEND_TEXT},
{"binnedAverageLegendText", IDS_ABOUT_POWER_BINNED_AVERAGE_LEGEND_TEXT},
{"averageOverText", IDS_ABOUT_POWER_AVERAGE_OVER_TEXT},
{"samplesText", IDS_ABOUT_POWER_AVERAGE_SAMPLES_TEXT},
{"cpuIdleSectionTitle", IDS_ABOUT_POWER_CPU_IDLE_SECTION_TITLE},
{"idleStateOccupancyPercentageHeader",
IDS_ABOUT_POWER_CPU_IDLE_STATE_OCCUPANCY_PERCENTAGE},
{"cpuFreqSectionTitle", IDS_ABOUT_POWER_CPU_FREQ_SECTION_TITLE},
{"frequencyStateOccupancyPercentageHeader",
IDS_ABOUT_POWER_CPU_FREQ_STATE_OCCUPANCY_PERCENTAGE},
};
html->AddLocalizedStrings(kStrings);
html->UseStringsJs();
html->AddResourcePath("power.css", IDR_ABOUT_POWER_CSS);
html->AddResourcePath("power.js", IDR_ABOUT_POWER_JS);
html->SetDefaultResource(IDR_ABOUT_POWER_HTML);
}
PowerUI::~PowerUI() = default;
} // namespace ash
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