[chromeos/about:power] Collect cpuidle and cpufreq stats

chrome/browser/ui/webui/chromeos/power_ui.cc

 // 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 "chrome/browser/ui/webui/chromeos/power_ui.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/compiler_specific.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/power/power_data_collector.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/url_constants.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 "grit/browser_resources.h"
 #include "grit/generated_resources.h"
 
 namespace chromeos {
 
 namespace {
 
 const char kStringsJsFile[] = "strings.js";
+
 const char kRequestBatteryChargeDataCallback[] = "requestBatteryChargeData";
 const char kOnRequestBatteryChargeDataFunction[] =
     "powerUI.showBatteryChargeData";
 
+const char kRequestCpuIdleDataCallback[] = "requestCpuIdleData";
+const char kOnRequestCpuIdleDataFunction[] =
+    "powerUI.showCpuIdleData";
+
+const char kRequestCpuFreqDataCallback[] = "requestCpuFreqData";
+const char kOnRequestCpuFreqDataFunction[] =
+    "powerUI.showCpuFreqData";
+
 class PowerMessageHandler : public content::WebUIMessageHandler {
  public:
   PowerMessageHandler();
   virtual ~PowerMessageHandler();
 
   // WebUIMessageHandler implementation.
   virtual void RegisterMessages() OVERRIDE;
 
  private:
   void OnGetBatteryChargeData(const base::ListValue* value);
+  void OnGetCpuIdleData(const base::ListValue* value);
+  void OnGetCpuFreqData(const base::ListValue* value);
+  void GetJsStateOccupancyData(
+      const std::vector<CpuDataCollector::StateOccupancySampleDeque>& data,
+      const std::vector<std::string>& state_names,
+      base::ListValue* js_data);
+  void GetJsSystemResumedData(base::ListValue* value);
 };
 
 PowerMessageHandler::PowerMessageHandler() {
 }
 
 PowerMessageHandler::~PowerMessageHandler() {
 }
 
 void PowerMessageHandler::RegisterMessages() {
   web_ui()->RegisterMessageCallback(
       kRequestBatteryChargeDataCallback,
       base::Bind(&PowerMessageHandler::OnGetBatteryChargeData,
                  base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      kRequestCpuIdleDataCallback,
+      base::Bind(&PowerMessageHandler::OnGetCpuIdleData,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      kRequestCpuFreqDataCallback,
+      base::Bind(&PowerMessageHandler::OnGetCpuFreqData,
+                 base::Unretained(this)));
 }
 
 void PowerMessageHandler::OnGetBatteryChargeData(const base::ListValue* value) {
   const std::deque<PowerDataCollector::PowerSupplySample>& power_supply =
       PowerDataCollector::Get()->power_supply_data();
   base::ListValue js_power_supply_data;
   for (size_t i = 0; i < power_supply.size(); ++i) {
     const PowerDataCollector::PowerSupplySample& sample = power_supply[i];
     scoped_ptr<base::DictionaryValue> element(new base::DictionaryValue);
     element->SetDouble("batteryPercent", sample.battery_percent);
     element->SetDouble("batteryDischargeRate", sample.battery_discharge_rate);
     element->SetBoolean("externalPower", sample.external_power);
     element->SetDouble("time", sample.time.ToJsTime());
 
     js_power_supply_data.Append(element.release());
   }
 
+  base::ListValue js_system_resumed_data;
+  GetJsSystemResumedData(&js_system_resumed_data);
+
+  web_ui()->CallJavascriptFunction(kOnRequestBatteryChargeDataFunction,
+                                   js_power_supply_data,
+                                   js_system_resumed_data);
+}
+
+void PowerMessageHandler::OnGetCpuIdleData(const base::ListValue* value) {
+  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::ListValue js_idle_data;
+  GetJsStateOccupancyData(idle_data, idle_state_names, &js_idle_data);
+
+  base::ListValue js_system_resumed_data;
+  GetJsSystemResumedData(&js_system_resumed_data);
+
+  web_ui()->CallJavascriptFunction(kOnRequestCpuIdleDataFunction,
+                                   js_idle_data,
+                                   js_system_resumed_data);
+}
+
+void PowerMessageHandler::OnGetCpuFreqData(const base::ListValue* value) {
+  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::ListValue js_freq_data;
+  GetJsStateOccupancyData(freq_data, freq_state_names, &js_freq_data);
+
+  base::ListValue js_system_resumed_data;
+  GetJsSystemResumedData(&js_system_resumed_data);
+
+  web_ui()->CallJavascriptFunction(kOnRequestCpuFreqDataFunction,
+                                   js_freq_data,
+                                   js_system_resumed_data);
+}
+
+void PowerMessageHandler::GetJsSystemResumedData(base::ListValue *data) {
+  DCHECK(data);
+
   const std::deque<PowerDataCollector::SystemResumedSample>& system_resumed =
       PowerDataCollector::Get()->system_resumed_data();
-  base::ListValue js_system_resumed_data;
   for (size_t i = 0; i < system_resumed.size(); ++i) {
     const PowerDataCollector::SystemResumedSample& sample = system_resumed[i];
     scoped_ptr<base::DictionaryValue> element(new base::DictionaryValue);
     element->SetDouble("sleepDuration",
                        sample.sleep_duration.InMillisecondsF());
     element->SetDouble("time", sample.time.ToJsTime());
 
-    js_system_resumed_data.Append(element.release());
+    data->Append(element.release());
   }
+}
 
-  web_ui()->CallJavascriptFunction(kOnRequestBatteryChargeDataFunction,
-                                   js_power_supply_data,
-                                   js_system_resumed_data);
+void PowerMessageHandler::GetJsStateOccupancyData(
+    const std::vector<CpuDataCollector::StateOccupancySampleDeque>& data,
+    const std::vector<std::string>& state_names,
+    base::ListValue *js_data) {
+  for (unsigned int cpu = 0; cpu < data.size(); ++cpu) {
+    const CpuDataCollector::StateOccupancySampleDeque& sample_deque = data[cpu];
+    scoped_ptr<base::ListValue> js_sample_list(new base::ListValue);
+    for (unsigned int i = 0; i < sample_deque.size(); ++i) {
+      const CpuDataCollector::StateOccupancySample& sample = sample_deque[i];
+      scoped_ptr<base::DictionaryValue> js_sample(new base::DictionaryValue);
+      js_sample->SetDouble("time", sample.time.ToJsTime());
+      js_sample->SetBoolean("cpuOnline", sample.cpu_online);
+
+      scoped_ptr<base::DictionaryValue> state_dict(new base::DictionaryValue);
+      for (size_t index = 0; index < sample.time_in_state.size(); ++index) {
+        state_dict->SetDouble(state_names[index],
+                              static_cast<double>(sample.time_in_state[index]));
+      }
+      js_sample->Set("timeInState", state_dict.release());
+
+      js_sample_list->Append(js_sample.release());
+    }
+    js_data->Append(js_sample_list.release());
+  }
 }
 
 }  // namespace
 
 PowerUI::PowerUI(content::WebUI* web_ui) : content::WebUIController(web_ui) {
   web_ui->AddMessageHandler(new PowerMessageHandler());
 
   content::WebUIDataSource* html =
       content::WebUIDataSource::Create(chrome::kChromeUIPowerHost);
   html->SetUseJsonJSFormatV2();
 
   html->AddLocalizedString("titleText", IDS_ABOUT_POWER_TITLE);
+  html->AddLocalizedString("showButton", IDS_ABOUT_POWER_SHOW_BUTTON);
+  html->AddLocalizedString("hideButton", IDS_ABOUT_POWER_HIDE_BUTTON);
   html->AddLocalizedString("reloadButton", IDS_ABOUT_POWER_RELOAD_BUTTON);
+  html->AddLocalizedString("notEnoughDataAvailableYet",
+                           IDS_ABOUT_POWER_NOT_ENOUGH_DATA);
+  html->AddLocalizedString("systemSuspended",
+                           IDS_ABOUT_POWER_SYSTEM_SUSPENDED);
+  html->AddLocalizedString("invalidData", IDS_ABOUT_POWER_INVALID);
+  html->AddLocalizedString("offlineText", IDS_ABOUT_POWER_OFFLINE);
+
+  html->AddLocalizedString("batteryChargeSectionTitle",
+                           IDS_ABOUT_POWER_BATTERY_CHARGE_SECTION_TITLE);
   html->AddLocalizedString("batteryChargePercentageHeader",
                            IDS_ABOUT_POWER_BATTERY_CHARGE_PERCENTAGE_HEADER);
   html->AddLocalizedString("batteryDischargeRateHeader",
                            IDS_ABOUT_POWER_BATTERY_DISCHARGE_RATE_HEADER);
-  html->AddLocalizedString("negativeDischargeRateInfo",
-                           IDS_ABOUT_POWER_NEGATIVE_DISCHARGE_RATE_INFO);
-  html->AddLocalizedString("notEnoughDataAvailableYet",
-                           IDS_ABOUT_POWER_NOT_ENOUGH_DATA);
-  html->AddLocalizedString("systemSuspended",
-                           IDS_ABOUT_POWER_SYSTEM_SUSPENDED);
+  html->AddLocalizedString("dischargeRateLegendText",
+                           IDS_ABOUT_POWER_DISCHARGE_RATE_LEGEND_TEXT);
+
+  html->AddLocalizedString("cpuIdleSectionTitle",
+                           IDS_ABOUT_POWER_CPU_IDLE_SECTION_TITLE);
+  html->AddLocalizedString("idleStateOccupancyPercentageHeader",
+                           IDS_ABOUT_POWER_CPU_IDLE_STATE_OCCUPANCY_PERCENTAGE);
+
+  html->AddLocalizedString("cpuFreqSectionTitle",
+                           IDS_ABOUT_POWER_CPU_FREQ_SECTION_TITLE);
+  html->AddLocalizedString("frequencyStateOccupancyPercentageHeader",
+                           IDS_ABOUT_POWER_CPU_FREQ_STATE_OCCUPANCY_PERCENTAGE);
+
   html->SetJsonPath(kStringsJsFile);
 
   html->AddResourcePath("power.css", IDR_ABOUT_POWER_CSS);
   html->AddResourcePath("power.js", IDR_ABOUT_POWER_JS);
   html->SetDefaultResource(IDR_ABOUT_POWER_HTML);
 
   Profile* profile = Profile::FromWebUI(web_ui);
   content::WebUIDataSource::Add(profile, html);
 }
 
 PowerUI::~PowerUI() {
 }
 
 }  // namespace chromeos