1 files changed, 172 insertions, 0 deletions
diff --git a/src/native/windows/msofficecomm/DispatchImpl.h b/src/native/windows/msofficecomm/DispatchImpl.h
new file mode 100644
index 0000000..f7abcbe
--- /dev/null
+++ b/src/native/windows/msofficecomm/DispatchImpl.h
@@ -0,0 +1,172 @@
+/*
+ * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+#ifndef _JMSOFFICECOMM_DISPATCHIMPL_H_
+#define _JMSOFFICECOMM_DISPATCHIMPL_H_
+
+#include <oaidl.h>
+#include "UnknownImpl.h"
+
+/**
+ * Represents a base implementation of the <tt>IDispatch</tt> interface.
+ *
+ * @author Lyubomir Marinov
+ */
+template <class T, REFIID IID_T>
+class DispatchImpl
+    : public UnknownImpl<T, IID_T>
+{
+public:
+    // IUnknown
+    STDMETHODIMP QueryInterface(REFIID iid, PVOID *obj)
+        {
+            HRESULT ret;
+
+            if (obj)
+            {
+                if (IID_IDispatch == iid)
+                {
+                    static_cast<LPUNKNOWN>(this)->AddRef();
+                    *obj = static_cast<LPDISPATCH>(this);
+                    ret = S_OK;
+                }
+                else
+                    ret = UnknownImpl<T, IID_T>::QueryInterface(iid, obj);
+            }
+            else
+                ret = E_POINTER;
+            return ret;
+        }
+
+    // IDispatch
+    STDMETHODIMP GetTypeInfoCount(UINT *pctinfo)
+#ifdef DISPATCHIMPL_CREATESTDDISPATCH
+        {
+            LPDISPATCH iDispatch = getIDispatch();
+            HRESULT hr;
+
+            if (iDispatch)
+                hr = iDispatch->GetTypeInfoCount(pctinfo);
+            else if (pctinfo)
+            {
+                *pctinfo = 0;
+                hr = S_OK;
+            }
+            else
+                hr = E_INVALIDARG;
+            return hr;
+        }
+#else
+        STDMETHODIMP_E_NOTIMPL_STUB
+#endif /* #ifdef DISPATCHIMPL_CREATESTDDISPATCH */
+
+    STDMETHODIMP GetTypeInfo(UINT iTInfo, LCID lcid, LPTYPEINFO *ppTInfo)
+#ifdef DISPATCHIMPL_CREATESTDDISPATCH
+        {
+            LPDISPATCH iDispatch = getIDispatch();
+            HRESULT hr;
+
+            if (iDispatch)
+                hr = iDispatch->GetTypeInfo(iTInfo, lcid, ppTInfo);
+            else if (ppTInfo)
+            {
+                *ppTInfo = NULL;
+                hr = TYPE_E_ELEMENTNOTFOUND;
+            }
+            else
+                hr = E_INVALIDARG;
+            return hr;
+        }
+#else
+        STDMETHODIMP_E_NOTIMPL_STUB
+#endif /* #ifdef DISPATCHIMPL_CREATESTDDISPATCH */
+
+    STDMETHODIMP GetIDsOfNames(REFIID riid, LPOLESTR *rgszNames, UINT cNames, LCID lcid, DISPID *rgDispId)
+#ifdef DISPATCHIMPL_CREATESTDDISPATCH
+        {
+            LPDISPATCH iDispatch = getIDispatch();
+            HRESULT hr;
+
+            if (iDispatch)
+                hr = iDispatch->GetIDsOfNames(riid, rgszNames, cNames, lcid, rgDispId);
+            else
+                hr = TYPE_E_ELEMENTNOTFOUND;
+            return hr;
+        }
+#else
+        STDMETHODIMP_E_NOTIMPL_STUB
+#endif /* #ifdef DISPATCHIMPL_CREATESTDDISPATCH */
+
+    STDMETHODIMP Invoke(DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams, VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
+#ifdef DISPATCHIMPL_CREATESTDDISPATCH
+        {
+            LPDISPATCH iDispatch = getIDispatch();
+            HRESULT hr;
+
+            if (iDispatch)
+                hr = iDispatch->Invoke(dispIdMember, riid, lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
+            else
+                hr = TYPE_E_ELEMENTNOTFOUND;
+            return hr;
+        }
+#else
+        STDMETHODIMP_E_NOTIMPL_STUB
+#endif /* #ifdef DISPATCHIMPL_CREATESTDDISPATCH */
+
+protected:
+    DispatchImpl() : _iDispatch(NULL) {};
+
+    virtual ~DispatchImpl()
+        {
+            if (_iDispatch)
+            {
+                _iDispatch->Release();
+                _iDispatch = NULL;
+            }
+        }
+
+private:
+#ifdef DISPATCHIMPL_CREATESTDDISPATCH
+    LPDISPATCH getIDispatch()
+        {
+            if (!_iDispatch)
+            {
+                LPTYPEINFO iTypeInfo;
+
+                if (SUCCEEDED(
+                        OutOfProcessServer::getTypeInfoOfGuid(
+                                IID_T,
+                                &iTypeInfo)))
+                {
+                    LPUNKNOWN iUnknown;
+
+                    if (SUCCEEDED(
+                            ::CreateStdDispatch(
+                                    this,
+                                    this,
+                                    iTypeInfo,
+                                    &iUnknown)))
+                    {
+                        LPDISPATCH iDispatch;
+
+                        if (SUCCEEDED(
+                                iUnknown->QueryInterface(
+                                        IID_IDispatch,
+                                        (PVOID *) &iDispatch)))
+                            _iDispatch = iDispatch;
+                        iUnknown->Release();
+                    }
+                    iTypeInfo->Release();
+                }
+            }
+            return _iDispatch;
+        }
+#endif /* #ifdef DISPATCHIMPL_CREATESTDDISPATCH */
+
+    LPDISPATCH _iDispatch;
+};
+
+#endif /* #ifndef _JMSOFFICECOMM_DISPATCHIMPL_H_ */