/// <summary>
/// Create a new instance of the ToolPanelExtensionManager. This class is
/// private and will be called internally by the InitialSetup method.
/// </summary>
/// <param name="_parentToolPanel">The view model for the toolpanel being managed</param>
/// <param name="_scope">The scope of the data that the tool panel items will have
/// access too</param>
private ToolPanelExtensionManager(ToolPanelViewModel _parentToolPanel, string _scope)
{
this.parentToolPanel = _parentToolPanel;
this.scope = _scope;
}
/// <summary>
/// Provides a deterministic way to create the ToolPanelVMStatic property
/// </summary>
public static void CreateToolPanelVM()
{
if (toolPanelVM == null)
{
toolPanelVM = new ToolPanelViewModel();
}
}
/// <summary>
/// Performs the initial setup of the ToolPanelExtensionManager. This method
/// must be called once before the Instance property can be used.
/// </summary>
/// <param name="_parentToolPanel">The view model for the toolpanel being managed</param>
/// <param name="_scope">The scope of the data that the tool panel items will have
/// access too</param>
public static void InitialSetup(ToolPanelViewModel _parentToolPanel, string _scope)
{
// Validate parameters
if (_parentToolPanel == null)
throw new System.ArgumentNullException("_parentToolPanel","An invalid ToolPanelViewModel was provided");
if (string.IsNullOrEmpty(_scope))
throw new System.ArgumentNullException("_scope", "An invalid scope was provided");
lock (syncRoot)
{
// Ensure that this can only be called once
if (instance == null)
{
instance = new ToolPanelExtensionManager(_parentToolPanel, _scope);
ExtensionManager.ComposeParts(instance);
}
}
}
/// <summary>
/// Provides a deterministic way to delete the ToolPanelVMStatic property
/// </summary>
public static void ClearToolPanelVM()
{
toolPanelVM.Cleanup();
toolPanelVM = null;
}
