private static bool CanFocusOnModelItem(ModelItem itemToFocus, WorkflowViewService viewService)
{
Fx.Assert(itemToFocus != null && viewService != null, "null argument");
if (typeof(ITextExpression).IsAssignableFrom(itemToFocus.ItemType))
{
return(false);
}
Type designerType = viewService.GetDesignerType(itemToFocus.ItemType);
return(typeof(WorkflowViewElement).IsAssignableFrom(designerType));
}
private static bool CanFocusOnModelItem(ModelItem itemToFocus, WorkflowViewService viewService)
{
Fx.Assert(itemToFocus != null && viewService != null, "null argument");
if (typeof(ITextExpression).IsAssignableFrom(itemToFocus.ItemType))
{
return false;
}
Type designerType = viewService.GetDesignerType(itemToFocus.ItemType);
return typeof(WorkflowViewElement).IsAssignableFrom(designerType);
}
internal IEnumerable <ModelItem> GetItemsOnDesigner(bool preOrder, bool excludeRoot, bool excludeErrorActivity, bool excludeExpression, bool includeOtherObjects)
{
WorkflowViewService viewService = this.WorkflowViewService;
IList <ModelItem> items =
ModelTreeManager.DepthFirstSearch(modelService.Root,
delegate(Type type)
{
// Only find items on the designer surface.
return(includeOtherObjects || (typeof(WorkflowViewElement).IsAssignableFrom(viewService.GetDesignerType(type))));
},
delegate(ModelItem modelItem)
{
return(!(excludeExpression && modelItem != null && typeof(ITextExpression).IsAssignableFrom(modelItem.ItemType)));
},
preOrder);
// ModelItemKeyValuePair is associated with CaseDesigner.
// So ModelItemKeyValuePair will be returned even if they are not really Cases.
// Those ModelItemKeyValuePairs need to be excluded.
IEnumerable <ModelItem> itemsToSearch = null;
if (!excludeErrorActivity)
{
itemsToSearch = items.Where <ModelItem>(item => !ModelUtilities.IsModelItemKeyValuePair(item.ItemType) ||
ModelUtilities.IsSwitchCase(item));
}
else
{
itemsToSearch = items.Where <ModelItem>(item =>
(!ModelUtilities.IsModelItemKeyValuePair(item.ItemType) || ModelUtilities.IsSwitchCase(item)) &&
!IsErrorActivity(item));
}
if (excludeRoot)
{
itemsToSearch = itemsToSearch.Except <ModelItem>(new ModelItem[] { modelService.Root });
}
return(itemsToSearch);
}
private static bool HasView(ModelItem modelItem, WorkflowViewService viewService, bool allowDrillIn)
{
ActivityDesignerOptionsAttribute options = WorkflowViewService.GetAttribute<ActivityDesignerOptionsAttribute>(modelItem.ItemType);
Type viewType = viewService.GetDesignerType(modelItem.ItemType);
return typeof(WorkflowViewElement).IsAssignableFrom(viewType) && (!allowDrillIn || options == null || options.AllowDrillIn);
}