internal TextServicesCompartment GetThreadCompartment(Guid guid)
{
// No TextServices are installed so that the compartment won't work.
if (!TextServicesLoader.ServicesInstalled ||
TextServicesContext.DispatcherCurrent == null)
{
return(null);
}
UnsafeNativeMethods.ITfThreadMgr threadmgr = TextServicesContext.DispatcherCurrent.ThreadManager;
if (threadmgr == null)
{
return(null);
}
if (_compartmentTable == null)
{
_compartmentTable = new Hashtable();
}
TextServicesCompartment compartment;
compartment = _compartmentTable[guid] as TextServicesCompartment;
if (compartment == null)
{
compartment = new TextServicesCompartment(guid,
threadmgr as UnsafeNativeMethods.ITfCompartmentMgr);
_compartmentTable[guid] = compartment;
}
return(compartment);
}
//------------------------------------------------------
//
// Private Methods
//
//------------------------------------------------------
// Cal ITfThreadMgr.SetFocus() with dim
private void SetFocusOnDim(UnsafeNativeMethods.ITfDocumentMgr dim)
{
UnsafeNativeMethods.ITfThreadMgr threadmgr = ThreadManager;
if (threadmgr != null)
{
threadmgr.SetFocus(dim);
}
}
// Called by framework's TextStore class. This method registers a
// document with TSF. The TextServicesContext must maintain this list
// to ensure all native resources are released after gc or uninitialization.
internal void RegisterTextStore(DefaultTextStore defaultTextStore)
{
// We must cache the DefaultTextStore because we'll need it from
// a worker thread if the AppDomain is torn down before the Dispatcher
// is shutdown.
_defaultTextStore = defaultTextStore;
UnsafeNativeMethods.ITfThreadMgr threadManager = ThreadManager;
if (threadManager != null)
{
UnsafeNativeMethods.ITfDocumentMgr doc;
UnsafeNativeMethods.ITfContext context;
int editCookie = UnsafeNativeMethods.TF_INVALID_COOKIE;
// Activate TSF on this thread if this is the first TextStore.
if (_istimactivated == false)
{
//temp variable created to retrieve the value
// which is then stored in the critical data.
int clientIdTemp;
threadManager.Activate(out clientIdTemp);
_clientId = new SecurityCriticalData <int>(clientIdTemp);
_istimactivated = true;
}
// Create a TSF document.
threadManager.CreateDocumentMgr(out doc);
doc.CreateContext(_clientId.Value, 0 /* flags */, _defaultTextStore, out context, out editCookie);
doc.Push(context);
// Release any native resources we're done with.
Marshal.ReleaseComObject(context);
// Same DocumentManager and EditCookie in _defaultTextStore.
_defaultTextStore.DocumentManager = doc;
_defaultTextStore.EditCookie = editCookie;
// Start the transitory extenstion so we can have Level 1 composition window from Cicero.
StartTransitoryExtension();
}
}
