public void ResourceNodeSelected(IResource res)
{
#region Preconditions
if (res == null)
{
throw new ArgumentNullException("res", "FilterRegistry -- Input resource in node selection processing can not be NULL");
}
if (!FilterRegistry.IsViewOrFolder(res))
{
throw new ArgumentException("FilterRegistry -- IResourceTreeHandler is called with the resource of inappropriate type [" + res.Type + "]");
}
#endregion Preconditions
// Selecting a tree node (view) in the Shutdown mode is NOP.
if (Core.State == CoreState.ShuttingDown)
{
return;
}
string viewName = res.GetPropText(Core.Props.Name);
if (res.Type == FilterManagerProps.ViewResName)
{
if ((res == _lastSelectedView) && (_lastSelectedResult != null) &&
(Core.WorkspaceManager.ActiveWorkspace == _lastSelectedWorkspace) &&
(res.GetStringProp("DeepName") != FilterManagerProps.ViewUnreadDeepName) &&
(!res.HasProp("ForceExec")))
{
Core.ResourceBrowser.DisplayConfigurableResourceList(res, _lastSelectedResult, _displayOptions);
}
else
{
_lastSelectedResult = Core.FilterEngine.ExecView(res, viewName);
ConfigureDisplayOptions(res, viewName, _lastSelectedResult);
Core.ResourceBrowser.DisplayConfigurableResourceList(res, _lastSelectedResult, _displayOptions);
}
_lastSelectedView = res;
_lastSelectedWorkspace = Core.WorkspaceManager.ActiveWorkspace;
new ResourceProxy(res).DeletePropAsync("ForceExec");
}
else
{
Core.ResourceBrowser.DisplayResourceList(res, Core.ResourceStore.EmptyResourceList, viewName, null);
}
}
public DragDropEffects DragOver(IResource targetResource, IDataObject data, DragDropEffects allowedEffect, int keyState)
{
if (data.GetDataPresent(typeof(IResourceList)))
{
// The resources we're dragging
IResourceList dragResources = (IResourceList)data.GetData(typeof(IResourceList));
// Check if really dropping over a view-folder
if (!(targetResource.Type == FilterManagerProps.ViewFolderResName))
{
return(DragDropEffects.None);
}
// Collect all the direct and indirect parents of the droptarget; then we'll check to avoid dropping parent on its children
IntArrayList parentList = IntArrayListPool.Alloc();
try
{
IResource parent = targetResource;
while (parent != null)
{
parentList.Add(parent.Id);
parent = parent.GetLinkProp(Core.Props.Parent);
}
// Check
foreach (IResource res in dragResources)
{
// Dropping parent over its child?
if (parentList.IndexOf(res.Id) >= 0)
{
return(DragDropEffects.None);
}
// Can drop only views and view-folders on view-folders
if (!FilterRegistry.IsViewOrFolder(res))
{
return(DragDropEffects.None);
}
}
return(DragDropEffects.Move);
}
finally
{
IntArrayListPool.Dispose(parentList);
}
}
return(DragDropEffects.None);
}
public DragDropEffects DragOver(IResource targetResource, IDataObject data, DragDropEffects allowedEffect, int keyState)
{
if (data.GetDataPresent(typeof(IResourceList)))
{
// The resources we're dragging
IResourceList dragResources = (IResourceList)data.GetData(typeof(IResourceList));
// Check if really dropping over our resource (resource tree root for Views'n'Cats)
if (!(targetResource == Core.ResourceTreeManager.ResourceTreeRoot))
{
return(DragDropEffects.None);
}
// Collect all the direct and indirect parents of the droptarget; then we'll check to avoid dropping parent on its children
List <int> parentList = new List <int>();
IResource parent = targetResource;
while (parent != null)
{
parentList.Add(parent.Id);
parent = parent.GetLinkProp(Core.Props.Parent);
}
// Check
foreach (IResource res in dragResources)
{
// Dropping parent over its child?
if (parentList.IndexOf(res.Id) >= 0)
{
return(DragDropEffects.None);
}
// Can drop only views, view-folders, and category-tree-roots on the views'n'cats tree root
if (!(
(FilterRegistry.IsViewOrFolder(res)) ||
((res.Type == "ResourceTreeRoot") && (res.HasProp("RootResourceType")) && (res.GetStringProp("RootResourceType").StartsWith("Category")))
))
{
return(DragDropEffects.None);
}
}
return(DragDropEffects.Move);
}
return(DragDropEffects.None);
}
