/// <summary>
/// This method is called when a contextual menu is requested for a list box item.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The event args.</param>
private void OnToolboxItemMenuRequested(object sender, TreeListBoxItemMenuEventArgs e)
{
// Add model-specific menu items
if (e.Item is ControlTreeNodeModel controlModel)
{
StartNewMenuGroup();
e.Menu.Items.Add(new MenuItem()
{
Header = controlModel.IsFavorite ? "Remove from Favorites" : "Add to Favorites",
Command = controlModel.ToggleFavoriteCommand
});
}
else if (e.Item is FavoritesCategoryTreeNodeModel)
{
StartNewMenuGroup();
e.Menu.Items.Add(new MenuItem()
{
Header = "Clear Favorites",
Command = new DelegateCommand <object>(p => ControlDataRepository.Instance.ClearFavorites())
});
}
// Add common menu items
StartNewMenuGroup();
e.Menu.Items.Add(new MenuItem()
{
Header = "Reset Toolbox",
Command = new DelegateCommand <object>(p => ResetToolbox())
});
// Call this method to prepare a menu for a new group of menu items
void StartNewMenuGroup()
{
if (e.Menu is null)
{
e.Menu = new ContextMenu();
}
else
{
e.Menu.Items.Add(new Separator());
}
}
}
/// <summary>
/// Occurs when an item requests a context menu.
/// </summary>
/// <param name="sender">The sender of the event.</param>
/// <param name="e">The <c>TreeListBoxItemMenuEventArgs</c> that contains the event data.</param>
private void OnPropertyGridItemMenuRequested(object sender, TreeListBoxItemMenuEventArgs e)
{
var propertyModel = e.Item as IPropertyModel;
if (propertyModel != null)
{
if (propertyModel.ValueType == typeof(Color))
{
if (e.Menu == null)
{
e.Menu = new ContextMenu();
}
else
{
e.Menu.Items.Add(new Separator());
}
var yellowMenuItem = new MenuItem();
yellowMenuItem.Header = "Set Color to Yellow (custom menu item)";
yellowMenuItem.Command = new DelegateCommand <IPropertyModel>(SetColorToYellow);
yellowMenuItem.CommandParameter = propertyModel;
e.Menu.Items.Add(yellowMenuItem);
}
else if (propertyModel.ValueType == typeof(string))
{
if (e.Menu == null)
{
e.Menu = new ContextMenu();
}
else
{
e.Menu.Items.Add(new Separator());
}
var appendMenuItem = new MenuItem();
appendMenuItem.Header = "Append 'Foo' Text (custom menu item)";
appendMenuItem.Command = new DelegateCommand <IPropertyModel>(AppendText);
appendMenuItem.CommandParameter = propertyModel;
e.Menu.Items.Add(appendMenuItem);
}
}
else
{
var categoryModel = e.Item as ICategoryModel;
if (categoryModel != null)
{
if (e.Menu == null)
{
e.Menu = new ContextMenu();
}
else
{
e.Menu.Items.Add(new Separator());
}
var toggleMenuItem = new MenuItem();
toggleMenuItem.Header = "Toggle Expansion (custom menu item)";
toggleMenuItem.Command = new DelegateCommand <IDataModel>(ToggleExpansion);
toggleMenuItem.CommandParameter = categoryModel;
e.Menu.Items.Add(toggleMenuItem);
}
}
}