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https://github.com/ONLYOFFICE/core.git
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101 lines
2.3 KiB
C++
101 lines
2.3 KiB
C++
#pragma once
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#include "../Common/TemporaryCS.h"
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template <class T, class Reciever>
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class COfficeEventTemplate : public T
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{
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protected: CRITICAL_SECTION m_csThread;
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public:
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COfficeEventTemplate(Reciever *pReciever)
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: m_pReciever(pReciever)
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{
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InitializeCriticalSection(&m_csThread);
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m_cnt = 0;
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m_dwAdvise = 0;
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};
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virtual ~COfficeEventTemplate(void)
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{
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DeleteCriticalSection(&m_csThread);
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}
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STDMETHOD(GetTypeInfoCount)(UINT*) { return E_NOTIMPL; }
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STDMETHOD(GetTypeInfo)(UINT, LCID, ITypeInfo**) { return E_NOTIMPL; }
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STDMETHOD(GetIDsOfNames)(REFIID, LPOLESTR*, UINT, LCID, DISPID*) { return E_NOTIMPL; }
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STDMETHOD(QueryInterface)(REFIID iid, LPVOID* ppv) {
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if ((iid == __uuidof(T)) ||
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(iid == __uuidof(IDispatch)) ||
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(iid == __uuidof(IUnknown)))
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*ppv = this;
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else {
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*ppv = 0;
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return E_NOINTERFACE;
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}
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AddRef();
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return S_OK;
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}
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STDMETHOD_(ULONG,AddRef)() {
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return InterlockedIncrement(&m_cnt);
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}
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STDMETHOD_(ULONG,Release)() {
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InterlockedDecrement(&m_cnt);
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if (m_cnt!=0) return m_cnt;
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delete this;
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return 0;
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}
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BOOL Advise(IUnknown *pFile)
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{
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CTemporaryCS oCS(&m_csThread);
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if (NULL==pFile)
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return FALSE;
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IConnectionPointContainer* pContainer;
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IConnectionPoint* pCP;
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HRESULT hr = pFile->QueryInterface(IID_IConnectionPointContainer, (void**)&pContainer);
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if (NULL!=pContainer)
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{
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pContainer->FindConnectionPoint(__uuidof(T), &pCP);
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if (NULL!=pCP)
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{
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pCP->Advise(this, &m_dwAdvise);
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pCP->Release();
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pCP = NULL;
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}
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pContainer->Release();
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pContainer = NULL;
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}
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return TRUE;
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}
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BOOL UnAdvise(IUnknown *pFile)
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{
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CTemporaryCS oCS(&m_csThread);
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if ((NULL==pFile)||(0==m_dwAdvise))
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return FALSE;
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IConnectionPointContainer* pContainer;
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IConnectionPoint* pCP;
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HRESULT hr = pFile->QueryInterface(IID_IConnectionPointContainer, (void**)&pContainer);
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if (NULL!=pContainer)
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{
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hr = pContainer->FindConnectionPoint(__uuidof(T), &pCP);
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if (NULL!=pCP)
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{
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hr = pCP->Unadvise(m_dwAdvise);
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pCP->Release();
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pCP = NULL;
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}
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pContainer->Release();
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pContainer = NULL;
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}
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return TRUE;
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}
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public:
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Reciever* m_pReciever;
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protected:
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LONG m_cnt;
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DWORD m_dwAdvise;
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};
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