MsgBox.h

#pragma once
 
#include "Delegate.h"
#include "WndBase.h"
#include <Windows.h>
#include <string>
 
namespace sw
{
    using MsgBoxCallback = Action<>;
 
    enum class MsgBoxButton {
        AbortRetryIgnore    = MB_ABORTRETRYIGNORE,
        CancelRetryContinue = MB_CANCELTRYCONTINUE,
        Ok                  = MB_OK,
        OkCancel            = MB_OKCANCEL,
        RetryCancel         = MB_RETRYCANCEL,
        YesNo               = MB_YESNO,
        YesNoCancel         = MB_YESNOCANCEL,
    };
 
    enum class MsgBoxIcon {
        None        = 0,
        Warning     = MB_ICONWARNING,
        Information = MB_ICONINFORMATION,
        Question    = MB_ICONQUESTION,
        Error       = MB_ICONERROR,
    };
 
    enum class MsgBoxResult {
        Abort    = IDABORT,
        Cancel   = IDCANCEL,
        Continue = IDCONTINUE,
        Ignore   = IDIGNORE,
        No       = IDNO,
        Ok       = IDOK,
        Retry    = IDRETRY,
        TryAgain = IDTRYAGAIN,
        Yes      = IDYES,
    };
 
    struct MsgBoxResultHelper {
        MsgBoxResult result;
 
        MsgBoxResultHelper(MsgBoxResult result);
 
        operator sw::MsgBoxResult() const;
 
        MsgBoxResultHelper &OnOk(const MsgBoxCallback &callback);
 
        MsgBoxResultHelper &OnYes(const MsgBoxCallback &callback);
 
        MsgBoxResultHelper &OnNo(const MsgBoxCallback &callback);
 
        MsgBoxResultHelper &OnCancel(const MsgBoxCallback &callback);
 
        MsgBoxResultHelper &OnAbort(const MsgBoxCallback &callback);
 
        MsgBoxResultHelper &OnContinue(const MsgBoxCallback &callback);
 
        MsgBoxResultHelper &OnIgnore(const MsgBoxCallback &callback);
 
        MsgBoxResultHelper &OnRetry(const MsgBoxCallback &callback);
 
        MsgBoxResultHelper &OnTryAgain(const MsgBoxCallback &callback);
 
        template <MsgBoxResult RES>
        MsgBoxResultHelper &On(const MsgBoxCallback &callback)
        {
            if (this->result == RES) {
                if (callback) callback();
            }
            return *this;
        }
    };
 
    class MsgBox
    {
    private:
        MsgBox() = delete;
 
    public:
        static MsgBoxResultHelper Show(const WndBase *owner, const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::Ok, MsgBoxIcon icon = MsgBoxIcon::None);
 
        static MsgBoxResultHelper Show(const WndBase &owner, const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::Ok, MsgBoxIcon icon = MsgBoxIcon::None);
 
        static MsgBoxResultHelper Show(const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::Ok, MsgBoxIcon icon = MsgBoxIcon::None);
 
        static MsgBoxResultHelper ShowInfo(const WndBase *owner, const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::Ok);
 
        static MsgBoxResultHelper ShowInfo(const WndBase &owner, const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::Ok);
 
        static MsgBoxResultHelper ShowInfo(const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::Ok);
 
        static MsgBoxResultHelper ShowError(const WndBase *owner, const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::Ok);
 
        static MsgBoxResultHelper ShowError(const WndBase &owner, const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::Ok);
 
        static MsgBoxResultHelper ShowError(const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::Ok);
 
        static MsgBoxResultHelper ShowWarning(const WndBase *owner, const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::Ok);
 
        static MsgBoxResultHelper ShowWarning(const WndBase &owner, const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::Ok);
 
        static MsgBoxResultHelper ShowWarning(const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::Ok);
 
        static MsgBoxResultHelper ShowQuestion(const WndBase *owner, const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::YesNo);
 
        static MsgBoxResultHelper ShowQuestion(const WndBase &owner, const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::YesNo);
 
        static MsgBoxResultHelper ShowQuestion(const std::wstring &text = L"", const std::wstring &caption = L"", MsgBoxButton button = MsgBoxButton::YesNo);
    };
}