Updated Calculator diagnostic data collection per the specification (#572)

- Removed unneeded diagnostic events and code
- Added and consolidated events into the events defined in the spec

README.md

@@ -48,10 +48,10 @@ We also welcome [issues submitted on GitHub](https://github.com/Microsoft/calcul
 ## Roadmap
 For information regarding Windows Calculator plans and release schedule, please see the [Windows Calculator Roadmap](docs/Roadmap.md).
 
-## Data / Telemetry
+## Diagnostic Data
 This project collects usage data and sends it to Microsoft to help improve our products and services.
 Read our [privacy statement](https://go.microsoft.com/fwlink/?LinkId=521839) to learn more.
-Telemetry is disabled in development builds by default, and can be enabled with the `SEND_TELEMETRY`
+Diagnostic data is disabled in development builds by default, and can be enabled with the `SEND_DIAGNOSTICS`
 build flag.
 
 ## Currency Converter

src/CalcViewModel/ApplicationViewModel.cpp

@@ -82,7 +82,7 @@ void ApplicationViewModel::Initialize(ViewMode mode)
     }
     catch (const std::exception& e)
     {
-        TraceLogger::GetInstance().LogStandardException(__FUNCTIONW__, e);
+        TraceLogger::GetInstance().LogStandardException(mode, __FUNCTIONW__, e);
         if (!TryRecoverFromNavigationModeFailure())
         {
             // Could not navigate to standard mode either.
@@ -92,7 +92,7 @@ void ApplicationViewModel::Initialize(ViewMode mode)
     }
     catch (Exception ^ e)
     {
-        TraceLogger::GetInstance().LogPlatformException(__FUNCTIONW__, e);
+        TraceLogger::GetInstance().LogPlatformException(mode, __FUNCTIONW__, e);
         if (!TryRecoverFromNavigationModeFailure())
         {
             // Could not navigate to standard mode either.
@@ -121,10 +121,8 @@ bool ApplicationViewModel::TryRecoverFromNavigationModeFailure()
 void ApplicationViewModel::OnModeChanged()
 {
     assert(NavCategory::IsValidViewMode(m_mode));
-    TraceLogger::GetInstance().LogModeChangeBegin(m_PreviousMode, m_mode, ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
     if (NavCategory::IsCalculatorViewMode(m_mode))
     {
-        TraceLogger::GetInstance().LogCalculatorModeViewed(m_mode, ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
         if (!m_CalculatorViewModel)
         {
             m_CalculatorViewModel = ref new StandardCalculatorViewModel();
@@ -133,7 +131,6 @@ void ApplicationViewModel::OnModeChanged()
     }
     else if (NavCategory::IsDateCalculatorViewMode(m_mode))
     {
-        TraceLogger::GetInstance().LogDateCalculatorModeViewed(m_mode, ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
         if (!m_DateCalcViewModel)
         {
             m_DateCalcViewModel = ref new DateCalculatorViewModel();
@@ -141,7 +138,6 @@ void ApplicationViewModel::OnModeChanged()
     }
     else if (NavCategory::IsConverterViewMode(m_mode))
     {
-        TraceLogger::GetInstance().LogConverterModeViewed(m_mode, ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
         if (!m_ConverterViewModel)
         {
             auto dataLoader = make_shared<UnitConverterDataLoader>(ref new GeographicRegion());
@@ -155,13 +151,21 @@ void ApplicationViewModel::OnModeChanged()
     auto resProvider = AppResourceProvider::GetInstance();
     CategoryName = resProvider.GetResourceString(NavCategory::GetNameResourceKey(m_mode));
 
-    // This is the only place where a ViewMode enum should be cast to an int.
+    // Cast mode to an int in order to save it to app data.
-    //
     // Save the changed mode, so that the new window launches in this mode.
     // Don't save until after we have adjusted to the new mode, so we don't save a mode that fails to load.
     ApplicationData::Current->LocalSettings->Values->Insert(ModePropertyName, NavCategory::Serialize(m_mode));
 
-    TraceLogger::GetInstance().LogModeChangeEnd(m_mode, ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
+    // Log ModeChange event when not first launch, log WindowCreated on first launch
+    if (NavCategory::IsValidViewMode(m_PreviousMode))
+    {
+        TraceLogger::GetInstance().LogModeChange(m_mode);
+    }
+    else
+    {
+        TraceLogger::GetInstance().LogWindowCreated(m_mode);
+    }
+
     RaisePropertyChanged(ClearMemoryVisibilityPropertyName);
 }
 

src/CalcViewModel/CalcViewModel.vcxproj

@@ -308,7 +308,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(IsStoreBuild)' == 'True'">
     <ClCompile>
-      <AdditionalOptions>/DSEND_TELEMETRY %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalOptions>/DSEND_DIAGNOSTICS %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
   </ItemDefinitionGroup>
   <ItemGroup>
@@ -439,4 +439,4 @@
     </PropertyGroup>
     <Error Condition="!Exists('..\..\packages\Microsoft.UI.Xaml.2.0.181018003.1\build\native\Microsoft.UI.Xaml.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Microsoft.UI.Xaml.2.0.181018003.1\build\native\Microsoft.UI.Xaml.targets'))" />
   </Target>
-</Project>
+</Project>

src/CalcViewModel/Common/CalculatorButtonUser.h

@@ -161,55 +161,14 @@ public
         BINPOS62 = (int)CM::Command::CommandBINPOS62,
         BINPOS63 = (int)CM::Command::CommandBINPOS63,
         BINEND = (int)CM::Command::CommandBINEDITEND,
-        Hyp = (int)CM::Command::CommandHYP
+        Hyp = (int)CM::Command::CommandHYP,
-    };
 
-    // This contains list of functions whose usage we are tracelogging
+        // Enum values below are used for Tracelogging and do not map to the Calculator engine
-public
+        MemoryAdd = (int)CM::Command::CommandMPLUS,
-    enum class FunctionLogEnum
+        MemorySubtract = (int)CM::Command::CommandMMINUS,
-    {
+        MemoryRecall = (int)CM::Command::CommandRECALL,
-        Invert = (int)CM::Command::CommandREC,
+        MemoryClear = (int)CM::Command::CommandMCLEAR,
-        Sqrt = (int)CM::Command::CommandSQRT,
+        BitflipButton = 1000,
-        Percent = (int)CM::Command::CommandPERCENT,
+        FullKeypadButton = 1001
-        Negate = (int)CM::Command::CommandSIGN,
-        Degrees = (int)CM::Command::CommandDegrees,
-        Pi = (int)CM::Command::CommandPI,
-        Sin = (int)CM::Command::CommandSIN,
-        Cos = (int)CM::Command::CommandCOS,
-        Tan = (int)CM::Command::CommandTAN,
-        Factorial = (int)CM::Command::CommandFAC,
-        XPower2 = (int)CM::Command::CommandSQR,
-        Mod = (int)CM::Command::CommandMOD,
-        FToE = (int)CM::Command::CommandFE,
-        LogBaseE = (int)CM::Command::CommandLN,
-        InvSin = (int)CM::Command::CommandASIN,
-        InvCos = (int)CM::Command::CommandACOS,
-        InvTan = (int)CM::Command::CommandATAN,
-        LogBase10 = (int)CM::Command::CommandLOG,
-        XPowerY = (int)CM::Command::CommandPWR,
-        YRootX = (int)CM::Command::CommandROOT,
-        TenPowerX = (int)CM::Command::CommandPOW10,
-        EPowerX = (int)CM::Command::CommandPOWE,
-        Exp = (int)CM::Command::CommandEXP,
-        DecButton = (int)CM::Command::CommandDec,
-        OctButton = (int)CM::Command::CommandOct,
-        HexButton = (int)CM::Command::CommandHex,
-        BinButton = (int)CM::Command::CommandBin,
-        And = (int)CM::Command::CommandAnd,
-        Ror = (int)CM::Command::CommandROR,
-        Rol = (int)CM::Command::CommandROL,
-        Or = (int)CM::Command::CommandOR,
-        Lsh = (int)CM::Command::CommandLSHF,
-        Rsh = (int)CM::Command::CommandRSHF,
-        Xor = (int)CM::Command::CommandXor,
-        Not = (int)CM::Command::CommandNot,
-        Sinh = (int)CM::Command::CommandSINH,
-        Cosh = (int)CM::Command::CommandCOSH,
-        Tanh = (int)CM::Command::CommandTANH,
-        InvSinh = (int)CM::Command::CommandASINH,
-        InvCosh = (int)CM::Command::CommandACOSH,
-        InvTanh = (int)CM::Command::CommandATANH,
-        Cube = (int)CM::Command::CommandCUB,
-        DMS = (int)CM::Command::CommandDMS,
     };
 }

src/CalcViewModel/Common/CopyPasteManager.cpp

@@ -109,7 +109,7 @@ String ^ CopyPasteManager::ValidatePasteExpression(String ^ pastedText, ViewMode
     if (pastedText->Length() > MaxPasteableLength)
     {
         // return NoOp to indicate don't paste anything.
-        TraceLogger::GetInstance().LogInvalidPastedInputOccurred(L"PastedExpressionSizeGreaterThanMaxAllowed", mode, programmerNumberBase, bitLengthType);
+        TraceLogger::GetInstance().LogError(mode, L"CopyPasteManager::ValidatePasteExpression", L"PastedExpressionSizeGreaterThanMaxAllowed");
         return StringReference(PasteErrorString);
     }
 
@@ -129,7 +129,7 @@ String ^ CopyPasteManager::ValidatePasteExpression(String ^ pastedText, ViewMode
 
     // Extract operands from the expression to make regex comparison easy and quick. For whole expression it was taking too much of time.
     // Operands vector will have the list of operands in the pasteExpression
-    vector<wstring> operands = ExtractOperands(pasteExpression, mode, programmerNumberBase, bitLengthType);
+    vector<wstring> operands = ExtractOperands(pasteExpression, mode);
     if (operands.empty())
     {
         // return NoOp to indicate don't paste anything.
@@ -144,14 +144,14 @@ String ^ CopyPasteManager::ValidatePasteExpression(String ^ pastedText, ViewMode
     // validate each operand with patterns for different modes
     if (!ExpressionRegExMatch(operands, mode, modeType, programmerNumberBase, bitLengthType))
     {
-        TraceLogger::GetInstance().LogInvalidPastedInputOccurred(L"InvalidExpressionForPresentMode", mode, programmerNumberBase, bitLengthType);
+        TraceLogger::GetInstance().LogError(mode, L"CopyPasteManager::ValidatePasteExpression", L"InvalidExpressionForPresentMode");
         return StringReference(PasteErrorString);
     }
 
     return ref new String(pastedText->Data());
 }
 
-vector<wstring> CopyPasteManager::ExtractOperands(const wstring& pasteExpression, ViewMode mode, int programmerNumberBase, int bitLengthType)
+vector<wstring> CopyPasteManager::ExtractOperands(const wstring& pasteExpression, ViewMode mode)
 {
     vector<wstring> operands{};
     size_t lastIndex = 0;
@@ -173,7 +173,7 @@ vector<wstring> CopyPasteManager::ExtractOperands(const wstring& pasteExpression
 
         if (operands.size() >= MaxOperandCount)
         {
-            TraceLogger::GetInstance().LogInvalidPastedInputOccurred(L"OperandCountGreaterThanMaxCount", mode, programmerNumberBase, bitLengthType);
+            TraceLogger::GetInstance().LogError(mode, L"CopyPasteManager::ExtractOperands", L"OperandCountGreaterThanMaxCount");
             operands.clear();
             return operands;
         }
@@ -187,7 +187,7 @@ vector<wstring> CopyPasteManager::ExtractOperands(const wstring& pasteExpression
                 // to disallow pasting of 1e+12345 as 1e+1234, max exponent that can be pasted is 9999.
                 if (expLength > MaxExponentLength)
                 {
-                    TraceLogger::GetInstance().LogInvalidPastedInputOccurred(L"ExponentLengthGreaterThanMaxLength", mode, programmerNumberBase, bitLengthType);
+                    TraceLogger::GetInstance().LogError(mode, L"CopyPasteManager::ExtractOperands", L"ExponentLengthGreaterThanMaxLength");
                     operands.clear();
                     return operands;
                 }

src/CalcViewModel/Common/CopyPasteManager.h

@@ -51,7 +51,7 @@ namespace CalculatorApp
                 int bitLengthType);
 
         static std::vector<std::wstring>
-        ExtractOperands(const std::wstring& pasteExpression, CalculatorApp::Common::ViewMode mode, int programmerNumberBase = -1, int bitLengthType = -1);
+        ExtractOperands(const std::wstring& pasteExpression, CalculatorApp::Common::ViewMode mode);
         static bool ExpressionRegExMatch(
             std::vector<std::wstring> operands,
             CalculatorApp::Common::ViewMode mode,

src/CalcViewModel/Common/TraceLogger.h

@@ -6,6 +6,7 @@
 #include "CalcManager/Command.h"
 #include "TraceActivity.h"
 #include "NavCategory.h"
+#include "CalculatorButtonUser.h"
 
 static const int maxFunctionSize = (int)CalculationManager::Command::CommandBINEDITEND;
 
@@ -13,19 +14,17 @@ static const int maxFunctionSize = (int)CalculationManager::Command::CommandBINE
 // This class implements a singleton model ensure that only one instance is created.
 namespace CalculatorApp
 {
-    struct FuncLog
+    struct ButtonLog
     {
     public:
         int count;
-        std::wstring funcName;
+        CalculatorApp::NumbersAndOperatorsEnum button;
-        FuncLog()
+        CalculatorApp::Common::ViewMode mode;
+        ButtonLog(CalculatorApp::NumbersAndOperatorsEnum btn, CalculatorApp::Common::ViewMode vMode)
         {
-            count = 0;
+            button = btn;
-        }
+            mode = vMode;
-        FuncLog(std::wstring fName)
+            count = 1;
-        {
-            funcName = fName;
-            count = 0;
         }
     };
 
@@ -38,123 +37,45 @@ namespace CalculatorApp
         static TraceLogger& GetInstance();
         bool GetTraceLoggingProviderEnabled() const;
 
-        void LogAppLaunchStart();
+        void LogModeChange(CalculatorApp::Common::ViewMode mode) const;
-        void LogAppLaunchComplete();
+        void LogHistoryItemLoad(CalculatorApp::Common::ViewMode mode, int historyListSize, int loadedIndex) const;
-        void LogAppResumeComplete();
+        void LogMemoryItemLoad(CalculatorApp::Common::ViewMode mode, int memoryListSize, int loadedIndex) const;
-        void LogOnAppLaunch(std::wstring_view previousExecutionState) const;
+        void UpdateButtonUsage(CalculatorApp::NumbersAndOperatorsEnum button, CalculatorApp::Common::ViewMode mode);
-        void LogMemoryClearAll(int);
+        void LogButtonUsage();
-        void LogBitFlipPaneClicked() const;
+        void LogDateCalculationModeUsed(bool AddSubtractMode);
-        void LogBitFlipUsed() const;
+        void UpdateWindowCount(size_t windowCount = 0);
-        void LogHistoryBodyOpened() const;
-        void LogHistoryItemLoadBegin() const;
-        void LogHistoryItemLoadEnd(unsigned int) const;
-        void LogHistoryFlyoutOpenBegin(unsigned int) const;
-        void LogHistoryFlyoutOpenEnd(int) const;
-        void LogCalculatorModeViewed(CalculatorApp::Common::ViewMode, int);
-        void LogDateCalculatorModeViewed(CalculatorApp::Common::ViewMode, int);
-        void LogConverterModeViewed(CalculatorApp::Common::ViewMode, int);
-        void LogModeChangeBegin(CalculatorApp::Common::ViewMode, CalculatorApp::Common::ViewMode, int);
-        void LogModeChangeEnd(CalculatorApp::Common::ViewMode, int) const;
-        void LogClearHistory() const;
-        void InsertIntoMemoryMap(int, bool, bool, bool);
-        void UpdateMemoryMap(int, int, bool, bool, bool);
-        void DeleteFromMemoryMap(int, int);
-        void LogMemoryUsed(int, unsigned int, bool, bool, bool, unsigned int) const;
-        void LogMultipleMemoryUsed(unsigned int, unsigned int) const;
-        void LogSingleMemoryUsed(unsigned int) const;
-        void LogSharedMemoryUsed(std::wstring_view, std::wstring_view, unsigned int) const;
-        void LogMemoryBodyOpened() const;
-        void LogMemoryFlyoutOpenBegin(unsigned int) const;
-        void LogDebug(std::wstring_view debugData);
-        void LogMemoryFlyoutOpenEnd(unsigned int) const;
-        void LogInvalidPastedInputOccurred(std::wstring_view reason, CalculatorApp::Common::ViewMode mode, int ProgrammerNumberBase, int bitLengthType);
-        void LogValidInputPasted(CalculatorApp::Common::ViewMode mode) const;
-        void UpdateFunctionUsage(int func);
-        void LogFunctionUsage(int);
-        void InitFunctionLogArray();
-        void LogBitLengthButtonUsed(int windowId);
-        void LogRadixButtonUsed(int windowId);
-        void LogAngleButtonUsed(int windowId);
-        void LogHypButtonUsed(int windowId);
-        void LogNewWindowCreationBegin(int windowId);
-        void LogNewWindowCreationEnd(int windowId);
-        void LogError(std::wstring_view errorString);
-        void LogPrelaunchedAppActivatedByUser();
-        void LogAppPrelaunchedBySystem();
-        void UpdateWindowCount(size_t windowCount);
         bool UpdateWindowIdLog(int windowId);
-        void LogMaxWindowCount();
+        void LogVisualStateChanged(CalculatorApp::Common::ViewMode mode, std::wstring_view state) const;
-        void LogWindowActivated() const;
+        void LogWindowCreated(CalculatorApp::Common::ViewMode mode) const;
-        void LogWindowLaunched() const;
+        void LogConverterInputReceived(CalculatorApp::Common::ViewMode mode) const;
-        void LogUserRequestedRefreshFailed() const;
-        void LogConversionResult(std::wstring_view fromValue, std::wstring_view fromUnit, std::wstring_view toValue, std::wstring_view toUnit) const;
-        void LogAboutFlyoutOpened() const;
         void LogNavBarOpened() const;
-        void LogViewClosingTelemetry(int);
-        void LogCoreWindowWasNull() const;
 
-        // Trace methods for Date Calculator usage
+        void LogError(CalculatorApp::Common::ViewMode mode, std::wstring_view functionName, std::wstring_view errorString);
-        void LogDateDifferenceModeUsed(int windowId);
+        void LogStandardException(CalculatorApp::Common::ViewMode mode, std::wstring_view functionName, _In_ const std::exception& e) const;
-        void LogDateAddSubtractModeUsed(int windowId, bool isAddMode);
+        void LogWinRTException(CalculatorApp::Common::ViewMode mode, std::wstring_view functionName, _In_ winrt::hresult_error const& e) const;
-        void
+        void LogPlatformException(CalculatorApp::Common::ViewMode mode, std::wstring_view functionName, _In_ Platform::Exception ^ e) const;
-        LogDateClippedTimeDifferenceFound(winrt::Windows::Globalization::Calendar const& today, winrt::Windows::Foundation::DateTime const& clippedTime) const;
-
-        void LogStandardException(std::wstring_view functionName, _In_ const std::exception& e) const;
-        void LogWinRTException(std::wstring_view functionName, _In_ winrt::hresult_error const& e) const;
-        void LogPlatformException(std::wstring_view functionName, _In_ Platform::Exception ^ e) const;
 
     private:
         // Create an instance of TraceLogger
         TraceLogger();
 
-        // Any new Log method should
+        // As mentioned in Microsoft's Privacy Statement(https://privacy.microsoft.com/en-US/privacystatement#maindiagnosticsmodule),
-        // a) decide the level of logging. This will help us in limiting recording of events only up to a certain level. See this link for guidance
+        // sampling is involved in Microsoft's diagnostic data collection process.
-        // https://msdn.microsoft.com/en-us/library/windows/desktop/aa363742(v=vs.85).aspx We're using Verbose level for events that are called frequently and
+        // These keywords provide additional input into how frequently an event might be sampled.
-        // needed only for debugging or capturing perf for specific scenarios b) should decide whether or not to log to  telemetry and pass
+        // The lower the level of the keyword, the higher the possibility that the corresponding event may be sampled.
-        // TraceLoggingKeyword(MICROSOFT_KEYWORD_TELEMETRY) accordingly c) Should accept a variable number of additional data arguments if needed
+        void LogLevel1Event(std::wstring_view eventName, winrt::Windows::Foundation::Diagnostics::LoggingFields fields) const;
-        void LogTelemetryEvent(std::wstring_view eventName, winrt::Windows::Foundation::Diagnostics::LoggingFields fields) const;
+        void LogLevel2Event(std::wstring_view eventName, winrt::Windows::Foundation::Diagnostics::LoggingFields fields) const;
-        void LogMeasureEvent(std::wstring_view eventName, winrt::Windows::Foundation::Diagnostics::LoggingFields fields) const;
+        void LogLevel3Event(std::wstring_view eventName, winrt::Windows::Foundation::Diagnostics::LoggingFields fields) const;
-        void LogCriticalDataEvent(std::wstring_view eventName, winrt::Windows::Foundation::Diagnostics::LoggingFields fields) const;
-        void LogPerformanceEvent(std::wstring_view eventName, winrt::Windows::Foundation::Diagnostics::LoggingFields fields) const;
-        void LogInfoEvent(std::wstring_view eventName, winrt::Windows::Foundation::Diagnostics::LoggingFields fields) const;
 
         std::unique_ptr<TraceActivity> CreateTraceActivity(std::wstring_view activityName, winrt::Windows::Foundation::Diagnostics::LoggingFields fields) const;
 
         winrt::Windows::Foundation::Diagnostics::LoggingChannel g_calculatorProvider;
 
-        bool isSizeChangeLogged = false;
+        std::vector<ButtonLog> buttonLog;
-        bool isHideIfShownLogged = false;
-        bool isSizeChangedFirstTime = true; // to track the first size changed event which is fired on the launch of app
-        bool isAutoConversionBeginLoggedInSession = false;
-        bool isAutoConversionEndLoggedInSession = false;
-        bool angleButtonLoggedInSession = false;
-        bool radixButtonLoggedInSession = false;
-        bool bitLengthButtonLoggedInSession = false;
-        GUID sessionGuid;
-        CalculatorApp::Common::ViewMode currentMode = CalculatorApp::Common::ViewMode::None;
-        std::vector<FuncLog> funcLog;
-        int functionCount = 0;
-        bool isHypButtonLogged = false;
-        bool isAngleButtonInitialized = false;
-        unsigned int findIndex[maxFunctionSize] = { 0 };
-        bool GetIndex(int& index);
-        std::wstring GetProgrammerType(int index);
-        size_t maxWindowCount = 0;
-        bool isAppLaunchBeginLogged = false;
-        bool isAppLaunchEndLogged = false;
-        std::map<int, int> bitLengthButtonUsage;
-        std::map<int, int> angleButtonUsage;
-        std::map<int, int> radixButtonUsage;
         std::map<int, bool> windowIdLog;
 
-        // Private variables for Date Calculator usage
+        GUID sessionGuid;
-        bool m_dateDiffUsageLoggedInSession = false;
+        size_t currentWindowCount = 0;
-        bool m_dateAddUsageLoggedInSession = false;
-        bool m_dateSubtractUsageLoggedInSession = false;
-        std::map<int, int> m_dateAddModeUsage;
-        std::map<int, int> m_dateSubtractModeUsage;
-
-        size_t windowLaunchCount = 0;
 
         winrt::Windows::Foundation::Diagnostics::LoggingActivity m_appLaunchActivity;
     };

src/CalcViewModel/DataLoaders/CurrencyDataLoader.cpp

@@ -335,12 +335,12 @@ future<bool> CurrencyDataLoader::TryLoadDataFromCacheAsync()
     }
     catch (Exception ^ ex)
     {
-        TraceLogger::GetInstance().LogPlatformException(__FUNCTIONW__, ex);
+        TraceLogger::GetInstance().LogPlatformException(ViewMode::Currency, __FUNCTIONW__, ex);
         co_return false;
     }
     catch (const exception& e)
     {
-        TraceLogger::GetInstance().LogStandardException(__FUNCTIONW__, e);
+        TraceLogger::GetInstance().LogStandardException(ViewMode::Currency, __FUNCTIONW__, e);
         co_return false;
     }
     catch (...)
@@ -445,12 +445,12 @@ future<bool> CurrencyDataLoader::TryLoadDataFromWebAsync()
     }
     catch (Exception ^ ex)
     {
-        TraceLogger::GetInstance().LogPlatformException(__FUNCTIONW__, ex);
+        TraceLogger::GetInstance().LogPlatformException(ViewMode::Currency, __FUNCTIONW__, ex);
         co_return false;
     }
     catch (const exception& e)
     {
-        TraceLogger::GetInstance().LogStandardException(__FUNCTIONW__, e);
+        TraceLogger::GetInstance().LogStandardException(ViewMode::Currency, __FUNCTIONW__, e);
         co_return false;
     }
     catch (...)
@@ -466,7 +466,7 @@ future<bool> CurrencyDataLoader::TryLoadDataFromWebOverrideAsync()
     if (!didLoad)
     {
         m_loadStatus = CurrencyLoadStatus::FailedToLoad;
-        TraceLogger::GetInstance().LogUserRequestedRefreshFailed();
+        TraceLogger::GetInstance().LogError(ViewMode::Currency, L"CurrencyDataLoader::TryLoadDataFromWebOverrideAsync", L"UserRequestedRefreshFailed");
     }
 
     co_return didLoad;

src/CalcViewModel/DateCalculatorViewModel.cpp

@@ -88,9 +88,6 @@ DateCalculatorViewModel::DateCalculatorViewModel()
     if (calendar->DayOfWeek != trueDayOfWeek)
     {
         calendar->SetDateTime(today);
-        TraceLogger::GetInstance().LogDateClippedTimeDifferenceFound(
-            from_cx<winrt::Windows::Globalization::Calendar>(calendar),
-            winrt::Windows::Foundation::DateTime{ winrt::Windows::Foundation::TimeSpan{ clippedTime.UniversalTime } });
     }
 }
 

src/CalcViewModel/HistoryViewModel.cpp

@@ -118,6 +118,9 @@ void HistoryViewModel::SetCalculatorDisplay(CalculatorDisplay& calculatorDisplay
 
 void HistoryViewModel::ShowItem(_In_ HistoryItemViewModel ^ e)
 {
+    unsigned int index;
+    Items->IndexOf(e, &index);
+    TraceLogger::GetInstance().LogHistoryItemLoad((ViewMode)m_currentMode, ItemSize, (int)(index));
     HistoryItemClicked(e);
 }
 
@@ -149,7 +152,6 @@ void HistoryViewModel::OnHideCommand(_In_ Platform::Object ^ e)
 
 void HistoryViewModel::OnClearCommand(_In_ Platform::Object ^ e)
 {
-    TraceLogger::GetInstance().LogClearHistory();
     if (AreHistoryShortcutsEnabled == true)
     {
         m_calculatorManager->ClearHistory();

src/CalcViewModel/StandardCalculatorViewModel.cpp

@@ -37,6 +37,7 @@ namespace
     StringReference IsProgrammerPropertyName(L"IsProgrammer");
     StringReference DisplayValuePropertyName(L"DisplayValue");
     StringReference CalculationResultAutomationNamePropertyName(L"CalculationResultAutomationName");
+    StringReference IsBitFlipCheckedPropertyName(L"IsBitFlipChecked");
 }
 
 namespace CalculatorResourceKeys
@@ -599,8 +600,6 @@ void StandardCalculatorViewModel::OnButtonPressed(Object ^ parameter)
     NumbersAndOperatorsEnum numOpEnum = CalculatorButtonPressedEventArgs::GetOperationFromCommandParameter(parameter);
     Command cmdenum = ConvertToOperatorsEnum(numOpEnum);
 
-    TraceLogger::GetInstance().UpdateFunctionUsage((int)numOpEnum);
-
     if (IsInError)
     {
         m_standardCalculatorManager.SendCommand(Command::CommandCLEAR);
@@ -668,6 +667,7 @@ void StandardCalculatorViewModel::OnButtonPressed(Object ^ parameter)
                 m_isLastOperationHistoryLoad = false;
             }
 
+            TraceLogger::GetInstance().UpdateButtonUsage(numOpEnum, GetCalculatorMode());
             m_standardCalculatorManager.SendCommand(cmdenum);
         }
     }
@@ -748,7 +748,7 @@ void StandardCalculatorViewModel::OnPasteCommand(Object ^ parameter)
 
     // Ensure that the paste happens on the UI thread
     CopyPasteManager::GetStringToPaste(mode, NavCategory::GetGroupType(mode), NumberBase, bitLengthType)
-        .then([this, mode](String ^ pastedString) { OnPaste(pastedString, mode); }, concurrency::task_continuation_context::use_current());
+        .then([this, mode](String ^ pastedString) { OnPaste(pastedString); }, concurrency::task_continuation_context::use_current());
 }
 
 CalculationManager::Command StandardCalculatorViewModel::ConvertToOperatorsEnum(NumbersAndOperatorsEnum operation)
@@ -756,7 +756,7 @@ CalculationManager::Command StandardCalculatorViewModel::ConvertToOperatorsEnum(
     return safe_cast<Command>(operation);
 }
 
-void StandardCalculatorViewModel::OnPaste(String ^ pastedString, ViewMode mode)
+void StandardCalculatorViewModel::OnPaste(String ^ pastedString)
 {
     // If pastedString is invalid("NoOp") then display pasteError else process the string
     if (pastedString == StringReference(CopyPasteManager::PasteErrorString))
@@ -765,7 +765,6 @@ void StandardCalculatorViewModel::OnPaste(String ^ pastedString, ViewMode mode)
         return;
     }
 
-    TraceLogger::GetInstance().LogValidInputPasted(mode);
     bool isFirstLegalChar = true;
     m_standardCalculatorManager.SendCommand(Command::CommandCENTR);
     bool sendNegate = false;
@@ -884,7 +883,7 @@ void StandardCalculatorViewModel::OnPaste(String ^ pastedString, ViewMode mode)
         // Handle exponent and exponent sign (...e+... or ...e-... or ...e...)
         if (mappedNumOp == NumbersAndOperatorsEnum::Exp)
         {
-            //Check the following item
+            // Check the following item
             switch (MapCharacterToButtonId(*(it + 1), canSendNegate))
             {
             case NumbersAndOperatorsEnum::Subtract:
@@ -896,7 +895,7 @@ void StandardCalculatorViewModel::OnPaste(String ^ pastedString, ViewMode mode)
             break;
             case NumbersAndOperatorsEnum::Add:
             {
-                //Nothing to do, skip to the next item
+                // Nothing to do, skip to the next item
                 ++it;
             }
             break;
@@ -911,8 +910,7 @@ void StandardCalculatorViewModel::OnClearMemoryCommand(Object ^ parameter)
 {
     m_standardCalculatorManager.MemorizedNumberClearAll();
 
-    int windowId = Utils::GetWindowId();
+    TraceLogger::GetInstance().UpdateButtonUsage(NumbersAndOperatorsEnum::MemoryClear, GetCalculatorMode());
-    TraceLogger::GetInstance().LogMemoryClearAll(windowId);
 
     String ^ announcement = LocalizationStringUtil::GetLocalizedNarratorAnnouncement(CalculatorResourceKeys::MemoryCleared, m_localizedMemoryCleared);
     Announcement = CalculatorAnnouncement::GetMemoryClearedAnnouncement(announcement);
@@ -1046,8 +1044,7 @@ void StandardCalculatorViewModel::OnMemoryButtonPressed()
 {
     m_standardCalculatorManager.MemorizeNumber();
 
-    int windowId = Utils::GetWindowId();
+    TraceLogger::GetInstance().UpdateButtonUsage(NumbersAndOperatorsEnum::Memory, GetCalculatorMode());
-    TraceLogger::GetInstance().InsertIntoMemoryMap(windowId, IsStandard, IsScientific, IsProgrammer);
 
     String ^ announcement = LocalizationStringUtil::GetLocalizedNarratorAnnouncement(
         CalculatorResourceKeys::MemorySave, m_localizedMemorySavedAutomationFormat, m_DisplayValue->Data());
@@ -1079,49 +1076,31 @@ void StandardCalculatorViewModel::OnMemoryItemPressed(Object ^ memoryItemPositio
         auto boxedPosition = safe_cast<Box<int> ^>(memoryItemPosition);
         m_standardCalculatorManager.MemorizedNumberLoad(boxedPosition->Value);
         HideMemoryClicked();
-        int windowId = Utils::GetWindowId();
+
-        TraceLogger::GetInstance().LogMemoryUsed(windowId, boxedPosition->Value, IsStandard, IsScientific, IsProgrammer, MemorizedNumbers->Size);
+        auto mode = IsStandard ? ViewMode::Standard : IsScientific ? ViewMode::Scientific : ViewMode::Programmer;
+        TraceLogger::GetInstance().LogMemoryItemLoad(mode, MemorizedNumbers->Size, boxedPosition->Value);
     }
 }
 
 void StandardCalculatorViewModel::OnMemoryAdd(Object ^ memoryItemPosition)
 {
     // M+ will add display to memorylist if memory list is empty.
-    int windowId = Utils::GetWindowId();
 
     if (MemorizedNumbers)
     {
         auto boxedPosition = safe_cast<Box<int> ^>(memoryItemPosition);
-        if (MemorizedNumbers->Size > 0)
+        TraceLogger::GetInstance().UpdateButtonUsage(NumbersAndOperatorsEnum::MemoryAdd, GetCalculatorMode());
-        {
-            TraceLogger::GetInstance().LogMemoryUsed(windowId, boxedPosition->Value, IsStandard, IsScientific, IsProgrammer, MemorizedNumbers->Size);
-            TraceLogger::GetInstance().UpdateMemoryMap(windowId, boxedPosition->Value, IsStandard, IsScientific, IsProgrammer);
-        }
-        else
-        {
-            TraceLogger::GetInstance().InsertIntoMemoryMap(windowId, IsStandard, IsScientific, IsProgrammer);
-        }
         m_standardCalculatorManager.MemorizedNumberAdd(boxedPosition->Value);
     }
 }
 
 void StandardCalculatorViewModel::OnMemorySubtract(Object ^ memoryItemPosition)
 {
-    int windowId = Utils::GetWindowId();
-
     // M- will add negative of displayed number to memorylist if memory list is empty.
     if (MemorizedNumbers)
     {
         auto boxedPosition = safe_cast<Box<int> ^>(memoryItemPosition);
-        if (MemorizedNumbers->Size > 0)
+        TraceLogger::GetInstance().UpdateButtonUsage(NumbersAndOperatorsEnum::MemorySubtract, GetCalculatorMode());
-        {
-            TraceLogger::GetInstance().LogMemoryUsed(windowId, boxedPosition->Value, IsStandard, IsScientific, IsProgrammer, MemorizedNumbers->Size);
-            TraceLogger::GetInstance().UpdateMemoryMap(windowId, boxedPosition->Value, IsStandard, IsScientific, IsProgrammer);
-        }
-        else
-        {
-            TraceLogger::GetInstance().InsertIntoMemoryMap(windowId, IsStandard, IsScientific, IsProgrammer);
-        }
         m_standardCalculatorManager.MemorizedNumberSubtract(boxedPosition->Value);
     }
 }
@@ -1130,7 +1109,6 @@ void StandardCalculatorViewModel::OnMemoryClear(_In_ Object ^ memoryItemPosition
 {
     if (MemorizedNumbers && MemorizedNumbers->Size > 0)
     {
-        int windowId = Utils::GetWindowId();
         auto boxedPosition = safe_cast<Box<int> ^>(memoryItemPosition);
 
         if (boxedPosition->Value >= 0)
@@ -1148,9 +1126,7 @@ void StandardCalculatorViewModel::OnMemoryClear(_In_ Object ^ memoryItemPosition
             {
                 IsMemoryEmpty = true;
             }
-
+            TraceLogger::GetInstance().UpdateButtonUsage(NumbersAndOperatorsEnum::MemoryClear, GetCalculatorMode());
-            TraceLogger::GetInstance().LogMemoryUsed(windowId, boxedPosition->Value, IsStandard, IsScientific, IsProgrammer, MemorizedNumbers->Size);
-            TraceLogger::GetInstance().DeleteFromMemoryMap(windowId, boxedPosition->Value);
 
             wstring localizedIndex = to_wstring(boxedPosition->Value + 1);
             LocalizationSettings::GetInstance().LocalizeDisplayValue(&localizedIndex);
@@ -1191,6 +1167,11 @@ void StandardCalculatorViewModel::OnPropertyChanged(String ^ propertyname)
         RaisePropertyChanged(CalculationResultAutomationNamePropertyName);
         Announcement = GetDisplayUpdatedNarratorAnnouncement();
     }
+    else if (propertyname == IsBitFlipCheckedPropertyName)
+    {
+        TraceLogger::GetInstance().UpdateButtonUsage(
+            IsBitFlipChecked ? NumbersAndOperatorsEnum::BitflipButton : NumbersAndOperatorsEnum::FullKeypadButton, ViewMode::Programmer);
+    }
 }
 
 void StandardCalculatorViewModel::SetCalculatorType(ViewMode targetState)
@@ -1223,7 +1204,7 @@ void StandardCalculatorViewModel::SetCalculatorType(ViewMode targetState)
     }
 }
 
-String^ StandardCalculatorViewModel::GetRawDisplayValue()
+String ^ StandardCalculatorViewModel::GetRawDisplayValue()
 {
     if (IsInError)
     {
@@ -1884,3 +1865,16 @@ NarratorAnnouncement ^ StandardCalculatorViewModel::GetDisplayUpdatedNarratorAnn
 
     return CalculatorAnnouncement::GetDisplayUpdatedAnnouncement(announcement);
 }
+
+ViewMode StandardCalculatorViewModel::GetCalculatorMode()
+{
+    if (IsStandard)
+    {
+        return ViewMode::Standard;
+    }
+    else if (IsScientific)
+    {
+        return ViewMode::Scientific;
+    }
+    return ViewMode::Programmer;
+}

src/CalcViewModel/StandardCalculatorViewModel.h

@@ -317,7 +317,7 @@ namespace CalculatorApp
                 }
             }
 
-            internal : void OnPaste(Platform::String ^ pastedString, CalculatorApp::Common::ViewMode mode);
+            internal : void OnPaste(Platform::String ^ pastedString);
             void OnCopyCommand(Platform::Object ^ parameter);
             void OnPasteCommand(Platform::Object ^ parameter);
 
@@ -348,7 +348,6 @@ namespace CalculatorApp
             void OnBinaryOperatorReceived();
             void OnMemoryItemChanged(unsigned int indexOfMemory);
 
-
             Platform::String ^ GetLocalizedStringFormat(Platform::String ^ format, Platform::String ^ displayValue);
             void OnPropertyChanged(Platform::String ^ propertyname);
             void SetCalculatorType(CalculatorApp::Common::ViewMode targetState);
@@ -451,6 +450,8 @@ namespace CalculatorApp
             bool IsViewPinned();
             void SetViewPinnedState(bool pinned);
 
+            CalculatorApp::Common::ViewMode GetCalculatorMode();
+
             friend class CalculatorDisplay;
             friend class CalculatorFunctionalTests::HistoryTests;
             friend class CalculatorUnitTests::MultiWindowUnitTests;

src/CalcViewModel/UnitConverterViewModel.cpp

@@ -502,6 +502,8 @@ void UnitConverterViewModel::OnButtonPressed(Platform::Object ^ parameter)
     }
 
     m_model->SendCommand(command);
+
+    TraceLogger::GetInstance().LogConverterInputReceived(Mode);
 }
 
 void UnitConverterViewModel::OnCopyCommand(Platform::Object ^ parameter)
@@ -523,7 +525,7 @@ void UnitConverterViewModel::OnPasteCommand(Platform::Object ^ parameter)
     // EventWriteClipboardPaste_Start();
     // Any converter ViewMode is fine here.
     CopyPasteManager::GetStringToPaste(m_Mode, NavCategory::GetGroupType(m_Mode))
-        .then([this](String ^ pastedString) { OnPaste(pastedString, m_Mode); }, concurrency::task_continuation_context::use_current());
+        .then([this](String ^ pastedString) { OnPaste(pastedString); }, concurrency::task_continuation_context::use_current());
 }
 
 void UnitConverterViewModel::InitializeView()
@@ -882,7 +884,7 @@ NumbersAndOperatorsEnum UnitConverterViewModel::MapCharacterToButtonId(const wch
     return mappedValue;
 }
 
-void UnitConverterViewModel::OnPaste(String ^ stringToPaste, ViewMode mode)
+void UnitConverterViewModel::OnPaste(String ^ stringToPaste)
 {
     // If pastedString is invalid("NoOp") then display pasteError else process the string
     if (stringToPaste == StringReference(CopyPasteManager::PasteErrorString))
@@ -891,7 +893,6 @@ void UnitConverterViewModel::OnPaste(String ^ stringToPaste, ViewMode mode)
         return;
     }
 
-    TraceLogger::GetInstance().LogValidInputPasted(mode);
     bool isFirstLegalChar = true;
     bool sendNegate = false;
     wstring accumulation = L"";
@@ -1014,7 +1015,6 @@ void UnitConverterViewModel::StartConversionResultTimer()
         {
             String ^ valueFrom = m_Value1Active ? m_Value1 : m_Value2;
             String ^ valueTo = m_Value1Active ? m_Value2 : m_Value1;
-            TraceLogger::GetInstance().LogConversionResult(valueFrom->Data(), UnitFrom->ToString()->Data(), valueTo->Data(), UnitTo->ToString()->Data());
         }
     });
 }

src/CalcViewModel/UnitConverterViewModel.h

@@ -204,7 +204,7 @@ namespace CalculatorApp
             NumbersAndOperatorsEnum MapCharacterToButtonId(const wchar_t ch, bool& canSendNegate);
             void DisplayPasteError();
             void OnValueActivated(IActivatable ^ control);
-            void OnPaste(Platform::String ^ stringToPaste, CalculatorApp::Common::ViewMode mode);
+            void OnPaste(Platform::String ^ stringToPaste);
 
             void OnCopyCommand(Platform::Object ^ parameter);
             void OnPasteCommand(Platform::Object ^ parameter);

src/Calculator/AboutFlyout.xaml

@@ -4,7 +4,6 @@
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
              xmlns:local="using:CalculatorApp.Common"
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-             Loaded="UserControl_Loaded"
              mc:Ignorable="d">
     <UserControl.Transitions>
         <TransitionCollection>

src/Calculator/AboutFlyout.xaml.cpp

@@ -61,8 +61,3 @@ void AboutFlyout::SetDefaultFocus()
 {
     AboutFlyoutEULA->Focus(::FocusState::Programmatic);
 }
-
-void CalculatorApp::AboutFlyout::UserControl_Loaded(Platform::Object ^ sender, Windows::UI::Xaml::RoutedEventArgs ^ e)
-{
-    TraceLogger::GetInstance().LogAboutFlyoutOpened();
-}

src/Calculator/AboutFlyout.xaml.h

@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
+// Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
 #pragma once
@@ -18,6 +18,5 @@ public
     private:
         void FeedbackButton_Click(_In_ Platform::Object ^ sender, _In_ Windows::UI::Xaml::RoutedEventArgs ^ e);
         void SetVersionString();
-        void UserControl_Loaded(Platform::Object ^ sender, Windows::UI::Xaml::RoutedEventArgs ^ e);
     };
 } /* namespace CalculatorApp */

src/Calculator/App.xaml.cpp

@@ -60,7 +60,6 @@ namespace CalculatorApp
 /// </summary>
 App::App()
 {
-    TraceLogger::GetInstance().LogAppLaunchStart();
     InitializeComponent();
 
     m_preLaunched = false;
@@ -71,6 +70,8 @@ App::App()
     // Currently this is bugged so the property is only respected from code-behind.
     this->HighContrastAdjustment = ApplicationHighContrastAdjustment::None;
 
+    this->Suspending += ref new SuspendingEventHandler(this, &App::OnSuspending);
+
 #if _DEBUG
     this->DebugSettings->IsBindingTracingEnabled = true;
     this->DebugSettings->BindingFailed += ref new BindingFailedEventHandler([](_In_ Object ^ /*sender*/, _In_ BindingFailedEventArgs ^ e) {
@@ -219,21 +220,16 @@ Frame ^ App::CreateFrame()
 /// <param name="e">Details about the launch request and process.</param>
 void App::OnLaunched(LaunchActivatedEventArgs ^ args)
 {
-    TraceLogger::GetInstance().LogWindowLaunched();
     if (args->PrelaunchActivated)
     {
         // If the app got pre-launch activated, then save that state in a flag
         m_preLaunched = true;
-        TraceLogger::GetInstance().LogAppPrelaunchedBySystem();
     }
     OnAppLaunch(args, args->Arguments);
 }
 
 void App::OnAppLaunch(IActivatedEventArgs ^ args, String ^ argument)
 {
-    auto previousExecutionState = args->PreviousExecutionState;
-
-    TraceLogger::GetInstance().LogOnAppLaunch(previousExecutionState.ToString()->Data());
 
     // Uncomment the following lines to display frame-rate and per-frame CPU usage info.
     //#if _DEBUG
@@ -307,7 +303,6 @@ void App::OnAppLaunch(IActivatedEventArgs ^ args, String ^ argument)
     else
     {
         // For first launch, LaunchStart is logged in constructor, this is for subsequent launches.
-        TraceLogger::GetInstance().LogAppLaunchStart();
 
         // !Phone check is required because even in continuum mode user interaction mode is Mouse not Touch
         if ((UIViewSettings::GetForCurrentView()->UserInteractionMode == UserInteractionMode::Mouse)
@@ -319,7 +314,6 @@ void App::OnAppLaunch(IActivatedEventArgs ^ args, String ^ argument)
                 auto newCoreAppView = CoreApplication::CreateNewView();
                 newCoreAppView->Dispatcher->RunAsync(
                     CoreDispatcherPriority::Normal, ref new DispatchedHandler([args, argument, minWindowSize, weak]() {
-                        TraceLogger::GetInstance().LogNewWindowCreationBegin(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
                         auto that = weak.Resolve<App>();
                         if (that != nullptr)
                         {
@@ -372,13 +366,10 @@ void App::OnAppLaunch(IActivatedEventArgs ^ args, String ^ argument)
                                 }
                             }
                         }
-                        TraceLogger::GetInstance().LogNewWindowCreationEnd(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
                     }));
             }
             else
             {
-                TraceLogger::GetInstance().LogNewWindowCreationBegin(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
-
                 ActivationViewSwitcher ^ activationViewSwitcher;
                 auto activateEventArgs = dynamic_cast<IViewSwitcherProvider ^>(args);
                 if (activateEventArgs != nullptr)
@@ -390,12 +381,10 @@ void App::OnAppLaunch(IActivatedEventArgs ^ args, String ^ argument)
                 {
                     activationViewSwitcher->ShowAsStandaloneAsync(
                         ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()), ViewSizePreference::Default);
-                    TraceLogger::GetInstance().LogNewWindowCreationEnd(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
-                    TraceLogger::GetInstance().LogPrelaunchedAppActivatedByUser();
                 }
                 else
                 {
-                    TraceLogger::GetInstance().LogError(L"Null_ActivationViewSwitcher");
+                    TraceLogger::GetInstance().LogError(ViewMode::None, L"App::OnAppLaunch", L"Null_ActivationViewSwitcher");
                 }
             }
             // Set the preLaunched flag to false
@@ -460,13 +449,17 @@ void App::OnActivated(IActivatedEventArgs ^ args)
 {
     if (args->Kind == ActivationKind::Protocol)
     {
-        TraceLogger::GetInstance().LogWindowActivated();
         // We currently don't pass the uri as an argument,
         // and handle any protocol launch as a normal app launch.
         OnAppLaunch(args, nullptr);
     }
 }
 
+void CalculatorApp::App::OnSuspending(Object ^ sender, SuspendingEventArgs ^ args)
+{
+    TraceLogger::GetInstance().LogButtonUsage();
+}
+
 void App::DismissedEventHandler(SplashScreen ^ sender, Object ^ e)
 {
     SetupJumpList();
@@ -477,3 +470,5 @@ float App::GetAppWindowHeight()
     CoreWindow ^ window = CoreWindow::GetForCurrentThread();
     return window->Bounds.Height;
 }
+
+

src/Calculator/App.xaml.h

@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
+// Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
 //
@@ -42,6 +42,8 @@ namespace CalculatorApp
         void OnAppLaunch(Windows::ApplicationModel::Activation::IActivatedEventArgs ^ args, Platform::String ^ argument);
         void DismissedEventHandler(Windows::ApplicationModel::Activation::SplashScreen ^ sender, Platform::Object ^ e);
         void RegisterDependencyProperties();
+        void OnSuspending(Platform::Object ^ sender, Windows::ApplicationModel::SuspendingEventArgs ^ args);
+
 
         class SafeFrameWindowCreation final
         {

src/Calculator/Calculator.vcxproj

@@ -216,7 +216,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(IsStoreBuild)' == 'True'">
     <ClCompile>
-      <AdditionalOptions>/DSEND_TELEMETRY %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalOptions>/DSEND_DIAGNOSTICS %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
   </ItemDefinitionGroup>
   <PropertyGroup>
@@ -849,4 +849,4 @@
     <Error Condition="!Exists('..\..\packages\Microsoft.WindowsCalculator.PGO.1.0.2\build\native\Microsoft.WindowsCalculator.PGO.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Microsoft.WindowsCalculator.PGO.1.0.2\build\native\Microsoft.WindowsCalculator.PGO.targets'))" />
     <Error Condition="!Exists('..\..\packages\Microsoft.UI.Xaml.2.1.190405004.2\build\native\Microsoft.UI.Xaml.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Microsoft.UI.Xaml.2.1.190405004.2\build\native\Microsoft.UI.Xaml.targets'))" />
   </Target>
-</Project>
+</Project>

src/Calculator/Common/AppLifecycleLogger.cpp

@@ -15,18 +15,18 @@ using namespace winrt::Windows::UI::ViewManagement;
 
 namespace CalculatorApp
 {
-#ifdef SEND_TELEMETRY
+#ifdef SEND_DIAGNOSTICS
     // c.f. WINEVENT_KEYWORD_RESERVED_63-56 0xFF00000000000000 // Bits 63-56 - channel keywords
     // c.f. WINEVENT_KEYWORD_*              0x00FF000000000000 // Bits 55-48 - system-reserved keywords
-    constexpr int64_t MICROSOFT_KEYWORD_CRITICAL_DATA = 0x0000800000000000; // Bit 47
+    constexpr int64_t MICROSOFT_KEYWORD_LEVEL_1 = 0x0000800000000000; // Bit 47
-    constexpr int64_t MICROSOFT_KEYWORD_MEASURES = 0x0000400000000000;      // Bit 46
+    constexpr int64_t MICROSOFT_KEYWORD_LEVEL_2 = 0x0000400000000000;      // Bit 46
-    constexpr int64_t MICROSOFT_KEYWORD_TELEMETRY = 0x0000200000000000;     // Bit 45
+    constexpr int64_t MICROSOFT_KEYWORD_LEVEL_3 = 0x0000200000000000;     // Bit 45
     constexpr int64_t MICROSOFT_KEYWORD_RESERVED_44 = 0x0000100000000000;   // Bit 44 (reserved for future assignment)
 #else
-    // define all Keyword options as 0 when we do not want to upload app telemetry
+    // define all Keyword options as 0 when we do not want to upload app diagnostics
-    constexpr int64_t MICROSOFT_KEYWORD_CRITICAL_DATA = 0;
+    constexpr int64_t MICROSOFT_KEYWORD_LEVEL_1 = 0;
-    constexpr int64_t MICROSOFT_KEYWORD_MEASURES = 0;
+    constexpr int64_t MICROSOFT_KEYWORD_LEVEL_2 = 0;
-    constexpr int64_t MICROSOFT_KEYWORD_TELEMETRY = 0;
+    constexpr int64_t MICROSOFT_KEYWORD_LEVEL_3 = 0;
     constexpr int64_t MICROSOFT_KEYWORD_RESERVED_44 = 0;
 #endif
 
@@ -35,7 +35,7 @@ namespace CalculatorApp
     AppLifecycleLogger::AppLifecycleLogger()
         : m_appLifecycleProvider(
             L"Microsoft.Windows.AppLifeCycle",
-            LoggingChannelOptions(GUID{ 0x4f50731a, 0x89cf, 0x4782, 0xb3, 0xe0, 0xdc, 0xe8, 0xc9, 0x4, 0x76, 0xba }), // Microsoft Telemetry group
+            LoggingChannelOptions(GUID{ 0x4f50731a, 0x89cf, 0x4782, 0xb3, 0xe0, 0xdc, 0xe8, 0xc9, 0x4, 0x76, 0xba }),
             GUID{ 0xef00584a, 0x2655, 0x462c, 0xbc, 0x24, 0xe7, 0xde, 0x63, 0xe, 0x7f, 0xbf }) // Unique provider ID {EF00584A-2655-462C-BC24-E7DE630E7FBF}
     {
     }
@@ -59,7 +59,7 @@ namespace CalculatorApp
     void AppLifecycleLogger::LogAppLifecycleEvent(hstring const& eventName, LoggingFields const& fields) const
     {
         m_appLifecycleProvider.LogEvent(
-            eventName, fields, LoggingLevel::Information, LoggingOptions(MICROSOFT_KEYWORD_TELEMETRY | WINEVENT_KEYWORD_RESPONSE_TIME));
+            eventName, fields, LoggingLevel::Information, LoggingOptions(MICROSOFT_KEYWORD_LEVEL_3 | WINEVENT_KEYWORD_RESPONSE_TIME));
     }
 #pragma endregion
 

src/Calculator/Common/AppLifecycleLogger.h

@@ -31,8 +31,8 @@ namespace CalculatorApp
         // Any new Log method should
         // a) Decide the level of logging. This will help us in limiting recording of events only up to a certain level. See this link for guidance
         // https://msdn.microsoft.com/en-us/library/windows/desktop/aa363742(v=vs.85).aspx We're using Verbose level for events that are called frequently and
-        // needed only for debugging or capturing perf for specific scenarios b) Should decide whether or not to log to  telemetry and pass
+        // needed only for debugging or capturing perf for specific scenarios b) Should decide whether or not to log to diagnostics and pass
-        // TraceLoggingKeyword(MICROSOFT_KEYWORD_TELEMETRY) accordingly c) Should accept a variable number of additional data arguments if needed
+        // TraceLoggingKeyword(MICROSOFT_KEYWORD_LEVEL_3) accordingly c) Should accept a variable number of additional data arguments if needed
         void LogAppLifecycleEvent(winrt::hstring const& eventName, winrt::Windows::Foundation::Diagnostics::LoggingFields const& fields) const;
         void PopulateAppInfo(winrt::Windows::Foundation::Diagnostics::LoggingFields& fields) const;
 

src/Calculator/Views/Calculator.xaml

@@ -35,7 +35,6 @@
         </DataTemplate>
 
         <!-- TextBox Styles -->
-               
         <Style TargetType="controls:OverflowTextBlock">
             <Setter Property="HorizontalAlignment" Value="Stretch"/>
             <Setter Property="Template">
@@ -319,7 +318,7 @@
                 </VisualState>
             </VisualStateGroup>
             <!-- Layout specific -->
-            <VisualStateGroup>
+            <VisualStateGroup CurrentStateChanged="OnVisualStateChanged">
                 <VisualState x:Name="Portrait768x1366">
                     <VisualState.StateTriggers>
                         <AdaptiveTrigger MinWindowHeight="1366" MinWindowWidth="768"/>
@@ -944,7 +943,6 @@
             </Border.Resources>
 
             <Pivot x:Name="DockPivot"
-                   SelectionChanged="DockPivot_SelectionChanged"
                    TabIndex="5"
                    Tapped="DockPanelTapped"
                    Template="{StaticResource DockPanelTemplate}">

src/Calculator/Views/Calculator.xaml.cpp

@@ -450,13 +450,11 @@ void Calculator::OnHistoryItemClicked(_In_ HistoryItemViewModel ^ e)
     unsigned int tokenSize;
     assert(e->GetTokens() != nullptr);
     e->GetTokens()->GetSize(&tokenSize);
-    TraceLogger::GetInstance().LogHistoryItemLoadBegin();
     Model->SetHistoryExpressionDisplay(e->GetTokens(), e->GetCommands());
     Model->SetExpressionDisplay(e->GetTokens(), e->GetCommands());
     Model->SetPrimaryDisplay(e->Result->Data(), false);
     Model->IsFToEEnabled = false;
 
-    TraceLogger::GetInstance().LogHistoryItemLoadEnd(tokenSize);
     CloseHistoryFlyout();
     this->Focus(::FocusState::Programmatic);
 }
@@ -468,8 +466,6 @@ void Calculator::HistoryFlyout_Opened(_In_ Object ^ sender, _In_ Object ^ args)
     m_IsLastFlyoutHistory = true;
     EnableControls(false);
     AutomationProperties::SetName(HistoryButton, m_closeHistoryFlyoutAutomationName);
-    TraceLogger::GetInstance().LogHistoryFlyoutOpenEnd(Model->HistoryVM->ItemSize);
-    TraceLogger::GetInstance().LogHistoryBodyOpened();
 }
 
 void Calculator::HistoryFlyout_Closing(_In_ FlyoutBase ^ sender, _In_ FlyoutBaseClosingEventArgs ^ args)
@@ -526,7 +522,6 @@ void Calculator::ToggleHistoryFlyout(Object ^ /*parameter*/)
         }
         else
         {
-            TraceLogger::GetInstance().LogHistoryFlyoutOpenBegin(Model->HistoryVM->ItemSize);
             HistoryFlyout->Content = m_historyList;
             m_historyList->RowHeight = NumpadPanel->ActualHeight;
             FlyoutBase::ShowAttachedFlyout(HistoryButton);
@@ -545,7 +540,6 @@ void Calculator::ToggleMemoryFlyout()
         }
         else
         {
-            TraceLogger::GetInstance().LogMemoryFlyoutOpenBegin(Model->MemorizedNumbers->Size);
             MemoryFlyout->Content = GetMemory();
             m_memory->RowHeight = NumpadPanel->ActualHeight;
             FlyoutBase::ShowAttachedFlyout(MemoryButton);
@@ -555,13 +549,11 @@ void Calculator::ToggleMemoryFlyout()
 
 void Calculator::OnMemoryFlyoutOpened(_In_ Object ^ sender, _In_ Object ^ args)
 {
-    TraceLogger::GetInstance().LogMemoryFlyoutOpenEnd(Model->MemorizedNumbers->Size);
     m_IsLastFlyoutMemory = true;
     m_IsLastFlyoutHistory = false;
     m_fIsMemoryFlyoutOpen = true;
     AutomationProperties::SetName(MemoryButton, m_closeMemoryFlyoutAutomationName);
     EnableControls(false);
-    TraceLogger::GetInstance().LogMemoryBodyOpened();
 }
 
 void Calculator::OnMemoryFlyoutClosing(_In_ FlyoutBase ^ sender, _In_ FlyoutBaseClosingEventArgs ^ args)
@@ -700,14 +692,9 @@ void Calculator::OnMemoryAccessKeyInvoked(_In_ UIElement ^ sender, _In_ AccessKe
     DockPivot->SelectedItem = MemoryPivotItem;
 }
 
-void CalculatorApp::Calculator::DockPivot_SelectionChanged(Platform::Object ^ sender, Windows::UI::Xaml::Controls::SelectionChangedEventArgs ^ e)
+void CalculatorApp::Calculator::OnVisualStateChanged(Platform::Object ^ sender, Windows::UI::Xaml::VisualStateChangedEventArgs ^ e)
 {
-    if (DockPivot->SelectedIndex == 0)
+    auto mode = IsStandard ? ViewMode::Standard : IsScientific ? ViewMode::Scientific : ViewMode::Programmer;
-    {
+    auto state = std::wstring(e->NewState->Name->Begin());
-        TraceLogger::GetInstance().LogHistoryBodyOpened();
+    TraceLogger::GetInstance().LogVisualStateChanged(mode, state);
-    }
-    else
-    {
-        TraceLogger::GetInstance().LogMemoryBodyOpened();
-    }
 }

src/Calculator/Views/Calculator.xaml.h

@@ -138,6 +138,6 @@ public
         void OnErrorLayoutCompleted(_In_ Platform::Object ^ sender, _In_ Platform::Object ^ e);
         void OnHistoryAccessKeyInvoked(_In_ Windows::UI::Xaml::UIElement ^ sender, _In_ Windows::UI::Xaml::Input::AccessKeyInvokedEventArgs ^ args);
         void OnMemoryAccessKeyInvoked(_In_ Windows::UI::Xaml::UIElement ^ sender, _In_ Windows::UI::Xaml::Input::AccessKeyInvokedEventArgs ^ args);
-        void DockPivot_SelectionChanged(Platform::Object ^ sender, Windows::UI::Xaml::Controls::SelectionChangedEventArgs ^ e);
+        void OnVisualStateChanged(Platform::Object ^ sender, Windows::UI::Xaml::VisualStateChangedEventArgs ^ e);
     };
 }

src/Calculator/Views/CalculatorProgrammerBitFlipPanel.xaml.cpp

@@ -170,8 +170,6 @@ void CalculatorProgrammerBitFlipPanel::OnBitToggled(_In_ Object ^ sender, _In_ R
     // which continuously alters the Display Value and the state of the Bit Flip buttons.
     if ((Model->IsBitFlipChecked) && Model->IsProgrammer)
     {
-        TraceLogger::GetInstance().LogBitFlipUsed();
-
         auto flipButton = static_cast<FlipButtons ^>(sender);
         Model->ButtonPressed->Execute(flipButton->ButtonId);
     }

src/Calculator/Views/CalculatorProgrammerDisplayPanel.xaml

@@ -70,7 +70,6 @@
                          Grid.Column="1"
                          Style="{StaticResource ProgKeypadRadioButtonStyle}"
                          AutomationProperties.AutomationId="bitFlip"
-                         Checked="ShowBitFlip"
                          Content=""
                          IsChecked="{x:Bind Model.IsBitFlipChecked, Mode=TwoWay}"/>
         </Grid>

src/Calculator/Views/CalculatorProgrammerDisplayPanel.xaml.cpp

@@ -6,6 +6,7 @@
 #include "CalcViewModel/Common/TraceLogger.h"
 
 using namespace CalculatorApp;
+using namespace CalculatorApp::Common;
 using namespace CalculatorApp::ViewModel;
 using namespace Platform;
 using namespace Windows::Foundation;
@@ -26,14 +27,8 @@ CalculatorProgrammerDisplayPanel::CalculatorProgrammerDisplayPanel()
     InitializeComponent();
 }
 
-void CalculatorProgrammerDisplayPanel::ShowBitFlip(Object ^ sender, RoutedEventArgs ^ e)
-{
-    TraceLogger::GetInstance().LogBitFlipPaneClicked();
-}
-
 void CalculatorProgrammerDisplayPanel::OnBitLengthButtonPressed(Object ^ parameter)
 {
-    TraceLogger::GetInstance().LogBitLengthButtonUsed(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
     String ^ buttonId = parameter->ToString();
 
     QwordButton->Visibility = ::Visibility::Collapsed;

src/Calculator/Views/CalculatorProgrammerOperators.xaml.cpp

@@ -38,7 +38,7 @@ CalculatorProgrammerOperators::CalculatorProgrammerOperators()
 
 void CalculatorProgrammerOperators::HexButtonChecked(_In_ Object ^ sender, _In_ RoutedEventArgs ^ e)
 {
-    TraceLogger::GetInstance().LogRadixButtonUsed(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
+    TraceLogger::GetInstance().UpdateButtonUsage(NumbersAndOperatorsEnum::HexButton, ViewMode::Programmer);
     if (Model)
     {
         Model->SwitchProgrammerModeBase(RADIX_TYPE::HEX_RADIX);
@@ -47,7 +47,7 @@ void CalculatorProgrammerOperators::HexButtonChecked(_In_ Object ^ sender, _In_
 
 void CalculatorProgrammerOperators::DecButtonChecked(_In_ Object ^ sender, _In_ RoutedEventArgs ^ e)
 {
-    TraceLogger::GetInstance().LogRadixButtonUsed(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
+    TraceLogger::GetInstance().UpdateButtonUsage(NumbersAndOperatorsEnum::DecButton, ViewMode::Programmer);
     if (Model)
     {
         Model->SwitchProgrammerModeBase(RADIX_TYPE::DEC_RADIX);
@@ -56,7 +56,7 @@ void CalculatorProgrammerOperators::DecButtonChecked(_In_ Object ^ sender, _In_
 
 void CalculatorProgrammerOperators::OctButtonChecked(_In_ Object ^ sender, _In_ RoutedEventArgs ^ e)
 {
-    TraceLogger::GetInstance().LogRadixButtonUsed(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
+    TraceLogger::GetInstance().UpdateButtonUsage(NumbersAndOperatorsEnum::OctButton, ViewMode::Programmer);
     if (Model)
     {
         Model->SwitchProgrammerModeBase(RADIX_TYPE::OCT_RADIX);
@@ -65,7 +65,7 @@ void CalculatorProgrammerOperators::OctButtonChecked(_In_ Object ^ sender, _In_
 
 void CalculatorProgrammerOperators::BinButtonChecked(_In_ Object ^ sender, _In_ RoutedEventArgs ^ e)
 {
-    TraceLogger::GetInstance().LogRadixButtonUsed(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
+    TraceLogger::GetInstance().UpdateButtonUsage(NumbersAndOperatorsEnum::BinButton, ViewMode::Programmer);
     if (Model)
     {
         Model->SwitchProgrammerModeBase(RADIX_TYPE::BIN_RADIX);

src/Calculator/Views/CalculatorScientificAngleButtons.xaml.cpp

@@ -37,7 +37,6 @@ CalculatorScientificAngleButtons::CalculatorScientificAngleButtons()
 
 void CalculatorScientificAngleButtons::HypButton_Toggled(_In_ Object ^ sender, _In_ RoutedEventArgs ^ e)
 {
-    TraceLogger::GetInstance().LogHypButtonUsed(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
 }
 
 void CalculatorScientificAngleButtons::FToEButton_Toggled(_In_ Object ^ sender, _In_ RoutedEventArgs ^ e)
@@ -48,7 +47,6 @@ void CalculatorScientificAngleButtons::FToEButton_Toggled(_In_ Object ^ sender,
 
 void CalculatorApp::CalculatorScientificAngleButtons::OnAngleButtonPressed(_In_ Object ^ commandParameter)
 {
-    TraceLogger::GetInstance().LogAngleButtonUsed(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
     String ^ buttonId = static_cast<String ^>(commandParameter);
 
     DegreeButton->Visibility = ::Visibility::Collapsed;

src/Calculator/Views/DateCalculator.xaml

@@ -358,7 +358,7 @@
         </Grid.RowDefinitions>
 
         <VisualStateManager.VisualStateGroups>
-            <VisualStateGroup>
+            <VisualStateGroup CurrentStateChanged="OnVisualStateChanged">
                 <VisualState x:Name="LeftAlignedLayout">
                     <VisualState.StateTriggers>
                         <AdaptiveTrigger MinWindowWidth="480"/>

src/Calculator/Views/DateCalculator.xaml.cpp

@@ -103,7 +103,7 @@ void DateCalculator::FromDate_DateChanged(_In_ CalendarDatePicker ^ sender, _In_
     {
         auto dateCalcViewModel = safe_cast<DateCalculatorViewModel ^>(this->DataContext);
         dateCalcViewModel->FromDate = e->NewDate->Value;
-        TraceLogger::GetInstance().LogDateDifferenceModeUsed(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
+        TraceLogger::GetInstance().LogDateCalculationModeUsed(false /* AddSubtractMode */);
     }
     else
     {
@@ -117,7 +117,7 @@ void DateCalculator::ToDate_DateChanged(_In_ CalendarDatePicker ^ sender, _In_ C
     {
         auto dateCalcViewModel = safe_cast<DateCalculatorViewModel ^>(this->DataContext);
         dateCalcViewModel->ToDate = e->NewDate->Value;
-        TraceLogger::GetInstance().LogDateDifferenceModeUsed(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()));
+        TraceLogger::GetInstance().LogDateCalculationModeUsed(false /* AddSubtractMode */);
     }
     else
     {
@@ -131,8 +131,7 @@ void DateCalculator::AddSubtract_DateChanged(_In_ CalendarDatePicker ^ sender, _
     {
         auto dateCalcViewModel = safe_cast<DateCalculatorViewModel ^>(this->DataContext);
         dateCalcViewModel->StartDate = e->NewDate->Value;
-        TraceLogger::GetInstance().LogDateAddSubtractModeUsed(
+        TraceLogger::GetInstance().LogDateCalculationModeUsed(true /* AddSubtractMode */);
-            ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()), dateCalcViewModel->IsAddMode);
     }
     else
     {
@@ -143,8 +142,11 @@ void DateCalculator::AddSubtract_DateChanged(_In_ CalendarDatePicker ^ sender, _
 void CalculatorApp::DateCalculator::OffsetValue_Changed(_In_ Platform::Object ^ sender, _In_ SelectionChangedEventArgs ^ e)
 {
     auto dateCalcViewModel = safe_cast<DateCalculatorViewModel ^>(this->DataContext);
-    TraceLogger::GetInstance().LogDateAddSubtractModeUsed(
+    // do not log diagnostics for no-ops and initialization of combo boxes
-        ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread()), dateCalcViewModel->IsAddMode);
+    if (dateCalcViewModel->DaysOffset != 0 || dateCalcViewModel->MonthsOffset != 0 || dateCalcViewModel->YearsOffset != 0)
+    {
+        TraceLogger::GetInstance().LogDateCalculationModeUsed(true /* AddSubtractMode */);
+    }
 }
 
 void DateCalculator::OnCopyMenuItemClicked(_In_ Object ^ sender, _In_ RoutedEventArgs ^ e)
@@ -232,3 +234,9 @@ void DateCalculator::AddSubtractOption_Checked(_In_ Object ^ sender, _In_ Routed
 {
     RaiseLiveRegionChangedAutomationEvent(/* DateDiff mode */ false);
 }
+
+void CalculatorApp::DateCalculator::OnVisualStateChanged(Platform::Object ^ sender, Windows::UI::Xaml::VisualStateChangedEventArgs ^ e)
+{
+    auto state = std::wstring(e->NewState->Name->Begin());
+    TraceLogger::GetInstance().LogVisualStateChanged(ViewMode::Date, state);
+}

src/Calculator/Views/DateCalculator.xaml.h

@@ -48,7 +48,9 @@ namespace CalculatorApp
         void OffsetDropDownClosed(_In_ Platform::Object ^ sender, _In_ Platform::Object ^ e);
         void CalendarFlyoutClosed(_In_ Platform::Object ^ sender, _In_ Platform::Object ^ e);
         void RaiseLiveRegionChangedAutomationEvent(_In_ bool isDateDiffMode);
+        void OnVisualStateChanged(Platform::Object ^ sender, Windows::UI::Xaml::VisualStateChangedEventArgs ^ e);
 
         Windows::Foundation::EventRegistrationToken m_dateCalcOptionChangedEventToken;
+
     };
 }

src/Calculator/Views/MainPage.xaml.cpp

@@ -253,7 +253,6 @@ void MainPage::OnPageLoaded(_In_ Object ^, _In_ RoutedEventArgs ^ args)
         CoreDispatcherPriority::Normal, ref new DispatchedHandler([]() {
             if (TraceLogger::GetInstance().UpdateWindowIdLog(ApplicationView::GetApplicationViewIdForWindow(CoreWindow::GetForCurrentThread())))
             {
-                TraceLogger::GetInstance().LogAppLaunchComplete();
                 AppLifecycleLogger::GetInstance().LaunchUIResponsive();
                 AppLifecycleLogger::GetInstance().LaunchVisibleComplete();
             }

src/Calculator/Views/UnitConverter.xaml

@@ -341,7 +341,7 @@
                     </VisualState.Setters>
                 </VisualState>
             </VisualStateGroup>
-            <VisualStateGroup x:Name="Sizing">
+            <VisualStateGroup x:Name="Sizing" CurrentStateChanged="OnVisualStateChanged">
                 <VisualState x:Name="Wide">
                     <VisualState.StateTriggers>
                         <AdaptiveTrigger MinWindowHeight="768" MinWindowWidth="1280"/>

src/Calculator/Views/UnitConverter.xaml.cpp

@@ -6,6 +6,7 @@
 
 #include "pch.h"
 #include "UnitConverter.xaml.h"
+#include "CalcViewModel/Common/TraceLogger.h"
 #include "CalcViewModel/UnitConverterViewModel.h"
 #include "Controls/CalculationResult.h"
 #include "Controls/CalculatorButton.h"
@@ -245,7 +246,7 @@ void UnitConverter::OnCopyMenuItemClicked(_In_ Object ^ sender, _In_ RoutedEvent
 void UnitConverter::OnPasteMenuItemClicked(_In_ Object ^ sender, _In_ RoutedEventArgs ^ e)
 {
     CopyPasteManager::GetStringToPaste(Model->Mode, CategoryGroupType::Converter).then([this](String ^ pastedString) {
-        Model->OnPaste(pastedString, Model->Mode);
+        Model->OnPaste(pastedString);
     });
 }
 
@@ -368,3 +369,10 @@ void CalculatorApp::UnitConverter::SupplementaryResultsPanelInGrid_SizeChanged(P
     // We add 0.01 to be sure to not create an infinite loop with SizeChanged events cascading due to float approximation
     RowDltrUnits->MinHeight = max(48.0, e->NewSize.Height + 0.01);
 }
+
+void CalculatorApp::UnitConverter::OnVisualStateChanged(Platform::Object ^ sender, Windows::UI::Xaml::VisualStateChangedEventArgs ^ e)
+{
+    auto mode = NavCategory::Deserialize(Model->CurrentCategory->GetModelCategory().id);
+    auto state = std::wstring(e->NewState->Name->Begin());
+    TraceLogger::GetInstance().LogVisualStateChanged(mode, state);
+}

src/Calculator/Views/UnitConverter.xaml.h

@@ -89,5 +89,6 @@ namespace CalculatorApp
 
         bool m_isAnimationEnabled;
         void SupplementaryResultsPanelInGrid_SizeChanged(Platform::Object ^ sender, Windows::UI::Xaml::SizeChangedEventArgs ^ e);
+        void OnVisualStateChanged(Platform::Object ^ sender, Windows::UI::Xaml::VisualStateChangedEventArgs ^ e);
     };
 }

src/Calculator/WindowFrameService.cpp

@@ -118,7 +118,7 @@ namespace CalculatorApp
 
     void WindowFrameService::OnConsolidated(_In_ ApplicationView ^ sender, _In_ ApplicationViewConsolidatedEventArgs ^ e)
     {
-        LogOnViewClosed(CoreWindow::GetForCurrentThread());
+        TraceLogger::GetInstance().UpdateWindowCount();
         auto parent = m_parent.Resolve<App>();
         if (parent != nullptr)
         {
@@ -128,7 +128,6 @@ namespace CalculatorApp
 
     void WindowFrameService::OnClosed(_In_ CoreWindow ^ sender, _In_ CoreWindowEventArgs ^ args)
     {
-        LogOnViewClosed(sender);
         auto parent = m_parent.Resolve<App>();
         if (parent != nullptr)
         {
@@ -136,18 +135,6 @@ namespace CalculatorApp
         }
     }
 
-    void WindowFrameService::LogOnViewClosed(_In_ CoreWindow ^ coreWindow)
-    {
-        if (coreWindow)
-        {
-            TraceLogger::GetInstance().LogViewClosingTelemetry(ApplicationView::GetApplicationViewIdForWindow(coreWindow));
-        }
-        else
-        {
-            TraceLogger::GetInstance().LogCoreWindowWasNull();
-        }
-    }
-
     void WindowFrameService::RegisterRuntimeWindowService(TypeName serviceId, _In_opt_ Object ^ service)
     {
         if (TryResolveRuntimeWindowService(serviceId))

src/Calculator/WindowFrameService.h

@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
+// Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
 #pragma once
@@ -47,8 +47,6 @@ public
         OnConsolidated(_In_ Windows::UI::ViewManagement::ApplicationView ^ sender, _In_ Windows::UI::ViewManagement::ApplicationViewConsolidatedEventArgs ^ e);
         void OnClosed(_In_ Windows::UI::Core::CoreWindow ^ sender, _In_ Windows::UI::Core::CoreWindowEventArgs ^ args);
 
-        void LogOnViewClosed(_In_ Windows::UI::Core::CoreWindow ^ coreWindow);
-
     private:
         Platform::Agile<Windows::UI::Core::CoreWindow ^> m_currentWindow;
         Platform::Agile<Windows::UI::Core::CoreDispatcher ^> m_coreDispatcher;

src/CalculatorUnitTests/CopyPasteManagerTest.cpp

@@ -576,7 +576,7 @@ namespace CalculatorUnitTests
         for (String ^ &input : inputs)
         {
             // paste number in standard mode and then validate the pastability of displayed number for other modes
-            scvm->OnPaste(input, ViewMode::Standard);
+            scvm->OnPaste(input);
             VERIFY_ARE_EQUAL(ValidateStandardPasteExpression(scvm->DisplayValue), scvm->DisplayValue);
             VERIFY_ARE_EQUAL(ValidateScientificPasteExpression(scvm->DisplayValue), scvm->DisplayValue);
             VERIFY_ARE_EQUAL(ValidateProgrammerHexQwordPasteExpression(scvm->DisplayValue), scvm->DisplayValue);

src/CalculatorUnitTests/StandardViewModelUnitTests.cpp

@@ -387,26 +387,26 @@ namespace CalculatorUnitTests
         {
             m_viewModel->IsScientific = false;
 
-            m_viewModel->OnPaste("-0.99", ViewMode::Standard);
+            m_viewModel->OnPaste("-0.99");
             ValidateViewModelValueAndExpression("-0" + m_decimalSeparator + "99", "");
 
-            m_viewModel->OnPaste("1+1=", ViewMode::Standard);
+            m_viewModel->OnPaste("1+1=");
             ValidateViewModelValueAndExpression("2", "");
 
             // This result is not obvious: it's the result of the previous operation
-            m_viewModel->OnPaste("0=", ViewMode::Standard);
+            m_viewModel->OnPaste("0=");
             ValidateViewModelValueAndExpression("1", "");
 
             // Negative value
-            m_viewModel->OnPaste("-1", ViewMode::Standard);
+            m_viewModel->OnPaste("-1");
             ValidateViewModelValueAndExpression("-1", "");
 
             // Negated expression
-            m_viewModel->OnPaste("-(1+1)", ViewMode::Standard);
+            m_viewModel->OnPaste("-(1+1)");
             ValidateViewModelValueAndSecondaryExpression("-2", "negate(1 + 1)");
 
             // More complicated Negated expression
-            m_viewModel->OnPaste("-(-(-1))", ViewMode::Standard);
+            m_viewModel->OnPaste("-(-(-1))");
             ValidateViewModelValueAndSecondaryExpression("-1", "negate(0 - (0 - 1))");
 
             // Switch to scientific mode
@@ -415,24 +415,24 @@ namespace CalculatorUnitTests
             VERIFY_IS_FALSE(m_viewModel->IsFToEChecked);
 
             //// Positive exponent
-            m_viewModel->OnPaste("1.23e+10", ViewMode::Scientific);
+            m_viewModel->OnPaste("1.23e+10");
             ValidateViewModelValueAndExpression("1" + m_decimalSeparator + "23e+10", "");
 
-            m_viewModel->OnPaste("1.23e10", ViewMode::Scientific);
+            m_viewModel->OnPaste("1.23e10");
             ValidateViewModelValueAndExpression("1" + m_decimalSeparator + "23e+10", "");
 
-            m_viewModel->OnPaste("135e10", ViewMode::Scientific);
+            m_viewModel->OnPaste("135e10");
             ValidateViewModelValueAndExpression("135" + m_decimalSeparator + "e+10", "");
 
             //// Negative exponent
-            m_viewModel->OnPaste("1.23e-10", ViewMode::Scientific);
+            m_viewModel->OnPaste("1.23e-10");
             ValidateViewModelValueAndExpression("1" + m_decimalSeparator + "23e-10", "");
 
             //// Uppercase E (for exponent)
-            m_viewModel->OnPaste("1.23E-10", ViewMode::Scientific);
+            m_viewModel->OnPaste("1.23E-10");
             ValidateViewModelValueAndExpression("1" + m_decimalSeparator + "23e-10", "");
 
-            m_viewModel->OnPaste("135E10", ViewMode::Scientific);
+            m_viewModel->OnPaste("135E10");
             ValidateViewModelValueAndExpression("135" + m_decimalSeparator + "e+10", "");
         }
 

src/CalculatorUnitTests/UnitConverterViewModelUnitTests.cpp

@@ -852,69 +852,68 @@ TEST_METHOD(TestOnPaste)
 
     // Call count is being set to 1 because we send 'CE' command as the first call in OnPaste method of the ViewModel
     UINT callCount = 1;
-    ViewMode mode = ViewMode::Volume; // Some temp mode for UnitConverter
 
     // Paste an invalid character - verify that call count doesn't increment
-    vm.OnPaste("z", mode);
+    vm.OnPaste("z");
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
 
     // Test all valid characters. Verify that two commands are sent for each character
-    vm.OnPaste("0", mode);
+    vm.OnPaste("0");
     callCount += 2;
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
     VERIFY_IS_TRUE(UCM::Command::Zero == mock->m_lastCommand);
 
-    vm.OnPaste("1", mode);
+    vm.OnPaste("1");
     callCount += 2;
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
     VERIFY_IS_TRUE(UCM::Command::One == mock->m_lastCommand);
 
-    vm.OnPaste("2", mode);
+    vm.OnPaste("2");
     callCount += 2;
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
     VERIFY_IS_TRUE(UCM::Command::Two == mock->m_lastCommand);
 
-    vm.OnPaste("3", mode);
+    vm.OnPaste("3");
     callCount += 2;
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
     VERIFY_IS_TRUE(UCM::Command::Three == mock->m_lastCommand);
 
-    vm.OnPaste("4", mode);
+    vm.OnPaste("4");
     callCount += 2;
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
     VERIFY_IS_TRUE(UCM::Command::Four == mock->m_lastCommand);
 
-    vm.OnPaste("5", mode);
+    vm.OnPaste("5");
     callCount += 2;
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
     VERIFY_IS_TRUE(UCM::Command::Five == mock->m_lastCommand);
 
-    vm.OnPaste("6", mode);
+    vm.OnPaste("6");
     callCount += 2;
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
     VERIFY_IS_TRUE(UCM::Command::Six == mock->m_lastCommand);
 
-    vm.OnPaste("7", mode);
+    vm.OnPaste("7");
     callCount += 2;
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
     VERIFY_IS_TRUE(UCM::Command::Seven == mock->m_lastCommand);
 
-    vm.OnPaste("8", mode);
+    vm.OnPaste("8");
     callCount += 2;
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
     VERIFY_IS_TRUE(UCM::Command::Eight == mock->m_lastCommand);
 
-    vm.OnPaste("9", mode);
+    vm.OnPaste("9");
     callCount += 2;
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
     VERIFY_IS_TRUE(UCM::Command::Nine == mock->m_lastCommand);
 
-    vm.OnPaste(".", mode);
+    vm.OnPaste(".");
     callCount += 2;
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
     VERIFY_IS_TRUE(UCM::Command::Decimal == mock->m_lastCommand);
 
-    vm.OnPaste("-", mode);
+    vm.OnPaste("-");
     // Call count should increment by one (the Clear command) since negate isn't
     // sent by itself, only after another legal character
     ++callCount;
@@ -922,7 +921,7 @@ TEST_METHOD(TestOnPaste)
 
     // Send an invalid character
 
-    vm.OnPaste("a", mode);
+    vm.OnPaste("a");
     // Count should remain the same
     VERIFY_ARE_EQUAL(callCount, mock->m_sendCommandCallCount);
     // Last command should remain the same