/// <summary>
/// Initializes a new instance of the <see cref="ViewToViewModelMappingContainer"/> class.
/// </summary>
/// <param name="dependencyObject">The dependency object.</param>
/// <exception cref="ArgumentNullException">The <paramref name="dependencyObject"/> is <c>null</c>.</exception>
public ViewToViewModelMappingContainer(DependencyObject dependencyObject)
{
Argument.IsNotNull("dependencyObject", dependencyObject);
var properties = dependencyObject.GetType().GetPropertiesEx();
foreach (var property in properties)
{
object[] viewToViewModelAttributes = property.GetCustomAttributesEx(typeof(ViewToViewModelAttribute), false);
if (viewToViewModelAttributes.Length > 0)
{
Log.Debug("Property '{0}' is decorated with the ViewToViewModelAttribute, creating a mapping", property.Name);
var viewToViewModelAttribute = (ViewToViewModelAttribute)viewToViewModelAttributes[0];
string propertyName = property.Name;
string viewModelPropertyName = (string.IsNullOrEmpty(viewToViewModelAttribute.ViewModelPropertyName)) ? propertyName : viewToViewModelAttribute.ViewModelPropertyName;
var mapping = new ViewToViewModelMapping(propertyName, viewModelPropertyName, viewToViewModelAttribute.MappingType);
// Store it (in 2 dictionaries for high-speed access)
_viewToViewModelMappings.Add(property.Name, mapping);
_viewModelToViewMappings.Add(viewModelPropertyName, mapping);
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ViewToViewModelMappingContainer" /> class.
/// </summary>
/// <param name="viewModelContainer">The view.</param>
/// <exception cref="ArgumentNullException">The <paramref name="viewModelContainer" /> is <c>null</c>.</exception>
public ViewToViewModelMappingContainer(IViewModelContainer viewModelContainer)
{
Argument.IsNotNull("view", viewModelContainer);
var properties = viewModelContainer.GetType().GetPropertiesEx();
foreach (var property in properties)
{
object[] viewToViewModelAttributes = property.GetCustomAttributesEx(typeof(ViewToViewModelAttribute), false);
if (viewToViewModelAttributes.Length > 0)
{
Log.Debug("Property '{0}' is decorated with the ViewToViewModelAttribute, creating a mapping", property.Name);
var viewToViewModelAttribute = (ViewToViewModelAttribute)viewToViewModelAttributes[0];
string propertyName = property.Name;
string viewModelPropertyName = (string.IsNullOrEmpty(viewToViewModelAttribute.ViewModelPropertyName)) ? propertyName : viewToViewModelAttribute.ViewModelPropertyName;
var mapping = new ViewToViewModelMapping(propertyName, viewModelPropertyName, viewToViewModelAttribute.MappingType);
// Store it (in 2 dictionaries for high-speed access)
_viewToViewModelMappings.Add(property.Name, mapping);
_viewModelToViewMappings.Add(viewModelPropertyName, mapping);
}
}
}
/// <summary>
/// Called when a property on the view model container has changed.
/// </summary>
/// <param name="sender">The view model container.</param>
/// <param name="e">The <see cref="System.ComponentModel.PropertyChangedEventArgs"/> instance containing the event data.</param>
private void OnViewModelContainerPropertyChanged(object sender, PropertyChangedEventArgs e)
{
var viewModelContainerType = ViewModelContainerType;
if (_viewToViewModelMappingContainers[viewModelContainerType].ContainsViewToViewModelMapping(e.PropertyName))
{
ViewToViewModelMapping mapping = _viewToViewModelMappingContainers[viewModelContainerType].GetViewToViewModelMapping(e.PropertyName);
if (_ignoredViewChanges.Contains(mapping.ViewPropertyName))
{
Log.Debug("Ignored property changed event for view.'{0}'", mapping.ViewPropertyName);
}
else
{
if ((mapping.MappingType == ViewToViewModelMappingType.TwoWayDoNothing) ||
(mapping.MappingType == ViewToViewModelMappingType.TwoWayViewWins) ||
(mapping.MappingType == ViewToViewModelMappingType.TwoWayViewModelWins) ||
(mapping.MappingType == ViewToViewModelMappingType.ViewToViewModel))
{
TransferValueFromViewToViewModel(CurrentViewModel, mapping.ViewPropertyName, mapping.ViewModelPropertyName);
}
}
}
}
