// Static Create method called by the event tracker system
// WinEvents are one throwns because items exist. so it makes sense to create the item and
// check for details afterward.
internal static void RaiseEvents (IntPtr hwnd, int eventId, object idProp, int idObject, int idChild)
{
ProxySimple el = null;
switch (idObject)
{
case NativeMethods.OBJID_CLIENT :
{
WindowsTreeView wtv = new WindowsTreeView (hwnd, null, -1);
// Selection or Expand/Collapse
if (idChild != 0 && (eventId == NativeMethods.EventObjectSelection ||
eventId == NativeMethods.EventObjectSelectionRemove ||
eventId == NativeMethods.EventObjectSelectionAdd ||
eventId == NativeMethods.EventObjectStateChange ||
eventId == NativeMethods.EventObjectDestroy ||
eventId == NativeMethods.EventObjectCreate ||
eventId == NativeMethods.EventObjectNameChange))
{
el = wtv.CreateParents(hwnd, TreeItemFromChildID(hwnd, idChild));
}
else
{
el = wtv;
}
break;
}
case NativeMethods.OBJID_VSCROLL :
case NativeMethods.OBJID_HSCROLL :
break;
default :
el = new WindowsTreeView (hwnd, null, -1);
break;
}
// Expand/Collapse is too peculiar per control to be processed in the dispatch code
if (idProp == ExpandCollapsePattern.ExpandCollapseStateProperty && el is TreeViewItem && eventId == NativeMethods.EventObjectStateChange)
{
((TreeViewItem) el).RaiseExpandCollapsedStateChangedEvent ();
return;
}
// Special case for logical element change for a tree view item on Expand/Collapse
if (((idProp as AutomationEvent) == AutomationElement.StructureChangedEvent && el is TreeViewItem) && !(eventId == NativeMethods.EventObjectDestroy || eventId == NativeMethods.EventObjectCreate))
{
((TreeViewItem) el).RaiseStructureChangedEvent ();
return;
}
if (el != null)
{
el.DispatchEvents (eventId, idProp, idObject, idChild);
}
}
private static IRawElementProviderSimple Create(IntPtr hwnd, int idChild)
{
WindowsTreeView wtv = new WindowsTreeView(hwnd, null, 0);
return idChild == 0 ? wtv : wtv.CreateParents(hwnd, TreeItemFromChildID(hwnd, idChild));
}
