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MainWindowViewModel.cpp
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MainWindowViewModel.cpp
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#include "MainWindowViewModel.h"
#include "CustomProperty.h"
#include "SimpleCommand.h"
#include <cwchar>
#include <string>
using namespace winrt::Windows::UI::Xaml::Data;
using namespace winrt::Windows::UI::Xaml::Input;
using namespace winrt::Windows::UI::Xaml::Interop;
namespace winrt::XamlMinGW::implementation
{
MainWindowViewModel::MainWindowViewModel()
{
m_greetingCommand = winrt::make<SimpleCommand>([this](IInspectable parameter) {
std::wstring str;
str += L"Hello, ";
str += this->UserName().c_str();
this->Message(str.c_str());
});
}
hstring MainWindowViewModel::Message()
{
return m_message;
}
void MainWindowViewModel::Message(hstring const& value)
{
m_message = value;
m_propertyChangedEvent(*this, PropertyChangedEventArgs{L"Message"});
}
hstring MainWindowViewModel::UserName()
{
return m_userName;
}
void MainWindowViewModel::UserName(hstring const& value)
{
m_userName = value;
m_propertyChangedEvent(*this, PropertyChangedEventArgs{L"UserName"});
}
ICommand MainWindowViewModel::GreetingCommand()
{
return m_greetingCommand;
}
/* INotifyPropertyChanged*/
winrt::event_token MainWindowViewModel::PropertyChanged(PropertyChangedEventHandler const& handler)
{
return m_propertyChangedEvent.add(handler);
}
void MainWindowViewModel::PropertyChanged(winrt::event_token const& token) noexcept
{
m_propertyChangedEvent.remove(token);
}
/* ICustomPropertyProvider */
ICustomProperty MainWindowViewModel::GetCustomProperty(hstring const& name)
{
_putws(name.c_str());
if (m_propertyMap.contains(name))
{
return m_propertyMap[name];
}
else
{
return nullptr;
}
}
ICustomProperty MainWindowViewModel::GetIndexedProperty(hstring const& name, TypeName const& type)
{
throw hresult_not_implemented();
}
hstring MainWindowViewModel::GetStringRepresentation()
{
return L"XamlMinGW.MainWindowViewModel";
}
TypeName MainWindowViewModel::Type()
{
return TypeName {
.Name = L"XamlMinGW.MainWindowViewModel",
.Kind = TypeKind::Custom
};
}
std::map<hstring, ICustomProperty> MainWindowViewModel::m_propertyMap
{
{
L"Message",
winrt::make<CustomProperty>(
CustomPropertyMetaData {
.CanRead = true,
.CanWrite = true,
.Name = L"Message",
.Type = TypeName {
.Name = L"String",
.Kind = TypeKind::Primitive
},
.Getter = [](IInspectable obj) -> IInspectable
{
return winrt::box_value(obj.as<MainWindowViewModel>()->Message());
},
.Setter = [](IInspectable obj, IInspectable value)
{
obj.as<MainWindowViewModel>()->Message(winrt::unbox_value<winrt::hstring>(value));
}
}
)
},
{
L"UserName",
winrt::make<CustomProperty>(
CustomPropertyMetaData {
.CanRead = true,
.CanWrite = true,
.Name = L"UserName",
.Type = TypeName {
.Name = L"String",
.Kind = TypeKind::Primitive
},
.Getter = [](IInspectable obj) -> IInspectable
{
return winrt::box_value(obj.as<MainWindowViewModel>()->UserName());
},
.Setter = [](IInspectable obj, IInspectable value)
{
obj.as<MainWindowViewModel>()->UserName(winrt::unbox_value<winrt::hstring>(value));
}
}
)
},
{
L"GreetingCommand",
winrt::make<CustomProperty>(
CustomPropertyMetaData {
.CanRead = true,
.CanWrite = false,
.Name = L"GreetingCommand",
.Type = TypeName {
.Name = L"Windows.UI.Xaml.Input.ICommand",
.Kind = TypeKind::Metadata
},
.Getter = [](IInspectable obj) -> IInspectable
{
return obj.as<MainWindowViewModel>()->GreetingCommand();
}
}
)
}
};
}