public void OnIdle()
{
if (!isDirty)
{
return;
}
if (null != onFileChanged)
{
HierarchyEventArgs args = new HierarchyEventArgs(fileId.ItemID, fileName);
args.TextBuffer = buffer;
// Enqueue a Library Request
//onFileChanged(fileId.Hierarchy, args);
}
isDirty = false;
}
public int OnItemDeleted(uint itemid)
{
Debug.WriteLine("--> OnItemDeleted");
// Notify that the item is deleted only if it is a PRG file.
string name = getItemName(itemid);
//if (! IsPrgFile(itemid, out name))
//{
// return VSConstants.S_OK;
//}
if (null != onItemDeleted)
{
HierarchyEventArgs args = new HierarchyEventArgs(itemid, name);
onItemDeleted(hierarchy, args);
}
return(VSConstants.S_OK);
}
public int OnItemAdded(uint itemidParent, uint itemidSiblingPrev, uint itemidAdded)
{
// Check if the item is a PRG file.
Debug.WriteLine("--> OnItemAdded");
string name = getItemName(itemidAdded);
// if (!IsPrgFile(itemidAdded, out name))
//{
// return VSConstants.S_OK;
//}
// This item is a PRG file, so we can notify that it is added to the hierarchy.
if (null != onItemAdded)
{
HierarchyEventArgs args = new HierarchyEventArgs(itemidAdded, name);
onItemAdded(hierarchy, args);
}
return(VSConstants.S_OK);
}
/// <summary>
/// Do a recursive walk on the hierarchy to find all the PRG files in it.
/// It will generate an event for every file found.
/// </summary>
private void InternalScanHierarchy(uint itemId)
{
uint currentItem = itemId;
while (VSConstants.VSITEMID_NIL != currentItem)
{
// If this item is a PRG file, then send the add item event.
string itemName = getItemName(itemId);
// IsPrgFile(currentItem, out itemName);
if ((null != onItemAdded) && !string.IsNullOrEmpty(itemName))
{
HierarchyEventArgs args = new HierarchyEventArgs(currentItem, itemName);
onItemAdded(hierarchy, args);
}
// NOTE: At the moment we skip the nested hierarchies, so here we look for the
// children of this node.
// Before looking at the children we have to make sure that the enumeration has not
// side effects to avoid unexpected behavior.
bool canScanSubitems = true;
int hr = 0;
object propertyValue = null;
ThreadHelper.JoinableTaskFactory.Run(async delegate
{
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
hr = hierarchy.GetProperty(currentItem, (int)__VSHPROPID.VSHPROPID_HasEnumerationSideEffects, out propertyValue);
});
if (VSConstants.S_OK == hr && propertyValue is bool ok)
{
canScanSubitems = !ok;
}
// If it is allow to look at the sub-items of the current one, lets do it.
if (canScanSubitems)
{
object child = null;
ThreadHelper.JoinableTaskFactory.Run(async delegate
{
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
hr = hierarchy.GetProperty(currentItem, (int)__VSHPROPID.VSHPROPID_FirstChild, out child);
});
if (VSConstants.S_OK == hr)
{
// There is a sub-item, call this same function on it.
InternalScanHierarchy(GetItemId(child));
}
}
// Move the current item to its first visible sibling.
object sibling = null;
ThreadHelper.JoinableTaskFactory.Run(async delegate
{
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
if (hierarchy != null)
{
hr = hierarchy.GetProperty(currentItem, (int)__VSHPROPID.VSHPROPID_NextSibling, out sibling);
}
});
if (VSConstants.S_OK != hr)
{
currentItem = VSConstants.VSITEMID_NIL;
}
else
{
currentItem = GetItemId(sibling);
}
}
}
