First commit.

EndComposition.cpp

@@ -0,0 +1,98 @@
+// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
+// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
+// PARTICULAR PURPOSE.
+//
+// Copyright (c) Microsoft Corporation. All rights reserved
+
+#include "Private.h"
+#include "Globals.h"
+#include "EditSession.h"
+#include "SampleIME.h"
+
+//////////////////////////////////////////////////////////////////////
+//
+//    ITfEditSession
+//        CEditSessionBase
+// CEndCompositionEditSession class
+//
+//////////////////////////////////////////////////////////////////////
+
+//+---------------------------------------------------------------------------
+//
+// CEndCompositionEditSession
+//
+//----------------------------------------------------------------------------
+
+class CEndCompositionEditSession : public CEditSessionBase
+{
+public:
+    CEndCompositionEditSession(_In_ CSampleIME *pTextService, _In_ ITfContext *pContext) : CEditSessionBase(pTextService, pContext)
+    {
+    }
+
+    // ITfEditSession
+    STDMETHODIMP DoEditSession(TfEditCookie ec)
+    {
+        _pTextService->_TerminateComposition(ec, _pContext, TRUE);
+        return S_OK;
+    }
+
+};
+
+//////////////////////////////////////////////////////////////////////
+//
+// CSampleIME class
+//
+//////////////////////////////////////////////////////////////////////
+
+//+---------------------------------------------------------------------------
+//
+// _TerminateComposition
+//
+//----------------------------------------------------------------------------
+
+void CSampleIME::_TerminateComposition(TfEditCookie ec, _In_ ITfContext *pContext, BOOL isCalledFromDeactivate)
+{
+	isCalledFromDeactivate;
+
+    if (_pComposition != nullptr)
+    {
+        // remove the display attribute from the composition range.
+        _ClearCompositionDisplayAttributes(ec, pContext);
+
+        if (FAILED(_pComposition->EndComposition(ec)))
+        {
+            // if we fail to EndComposition, then we need to close the reverse reading window.
+            _DeleteCandidateList(TRUE, pContext);
+        }
+
+        _pComposition->Release();
+        _pComposition = nullptr;
+
+        if (_pContext)
+        {
+            _pContext->Release();
+            _pContext = nullptr;
+        }
+    }
+}
+
+//+---------------------------------------------------------------------------
+//
+// _EndComposition
+//
+//----------------------------------------------------------------------------
+
+void CSampleIME::_EndComposition(_In_opt_ ITfContext *pContext)
+{
+    CEndCompositionEditSession *pEditSession = new (std::nothrow) CEndCompositionEditSession(this, pContext);
+    HRESULT hr = S_OK;
+
+    if (nullptr != pEditSession)
+    {
+        pContext->RequestEditSession(_tfClientId, pEditSession, TF_ES_ASYNCDONTCARE | TF_ES_READWRITE, &hr);
+        pEditSession->Release();
+    }
+}
+