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458 lines
13 KiB
458 lines
13 KiB
/******************************************************************************
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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HCApiLib.cpp
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Abstract:
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This file contains the implementation of the HCApi Library.
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Revision History:
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Davide Massarenti (Dmassare) 04/15/2000
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created
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******************************************************************************/
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#include "StdAfx.h"
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////////////////////////////////////////////////////////////////////////////////
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static const WCHAR c_HelpCtr[] = HC_ROOT_HELPSVC_BINARIES L"\\HelpCtr.exe";
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////////////////////////////////////////////////////////////////////////////////
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HCAPI::CmdData::CmdData()
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{
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// BUILD BREAK m_clsidCaller = CLSID_PCHHelpCenterIPC; // CLSID m_clsidCaller;
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//
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m_fSize = false; // bool m_fSize;
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m_lX = 0; // LONG m_lX;
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m_lY = 0; // LONG m_lY;
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m_lWidth = 0; // LONG m_lWidth;
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m_lHeight = 0; // LONG m_lHeight;
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//
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m_fMode = false; // bool m_fMode;
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m_dwFlags = 0; // DWORD m_dwFlags;
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//
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m_fWindow = false; // bool m_fWindow;
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m_hwndParent = NULL; // HWND m_hwndParent;
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//
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m_fCtx = false; // bool m_fCtx;
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// CComBSTR m_bstrCtx;
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//
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m_fURL = false; // bool m_fURL;
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// CComBSTR m_bstrURL;
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//
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m_fError = false; // bool m_fError;
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m_clsidError = CLSID_NULL; // CLSID m_clsidError;
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}
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HRESULT HCAPI::CmdData::Serialize( /*[out]*/ CComBSTR& bstrBLOB )
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{
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__HCP_FUNC_ENTRY( "HCAPI::CmdData::Serialize" );
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HRESULT hr;
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MPC::Serializer_Memory streamMem;
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MPC::Serializer& stream = streamMem;
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HGLOBAL hg = NULL;
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//
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// Dump the state of the object into the serializer.
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//
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_clsidCaller );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_fMode );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_dwFlags );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_fWindow );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream.HWND_write( m_hwndParent ));
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_fSize );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_lX );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_lY );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_lWidth );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_lHeight );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_fCtx );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_bstrCtxName );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_bstrCtxInfo );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_fURL );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_bstrURL );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_fError );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream << m_clsidError );
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//
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// Copy data into an HGLOBAL.
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//
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__MPC_EXIT_IF_CALL_RETURNS_NULL(hr, (hg = ::GlobalAlloc( GMEM_FIXED, streamMem.GetSize() )));
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::CopyMemory( hg, streamMem.GetData(), streamMem.GetSize() );
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//
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// Convert to string.
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//
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::ConvertHGlobalToHex( hg, bstrBLOB ));
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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if(hg) ::GlobalFree( hg );
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__HCP_FUNC_EXIT(hr);
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}
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HRESULT HCAPI::CmdData::Unserialize( /*[in]*/ const CComBSTR& bstrBLOB )
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{
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__HCP_FUNC_ENTRY( "HCAPI::CmdData::Unserialize" );
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HRESULT hr;
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MPC::Serializer_Memory streamMem;
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MPC::Serializer& stream = streamMem;
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HGLOBAL hg = NULL;
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//
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// Convert from string.
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//
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::ConvertHexToHGlobal( bstrBLOB, hg ));
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//
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// Copy data from an HGLOBAL.
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//
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__MPC_EXIT_IF_METHOD_FAILS(hr, streamMem.SetSize( ::GlobalSize( hg ) ));
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__MPC_EXIT_IF_METHOD_FAILS(hr, streamMem.write ( ::GlobalLock( hg ), ::GlobalSize( hg ) ));
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//
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// Read the state of the object from the serializer.
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//
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_clsidCaller );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_fMode );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_dwFlags );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_fWindow );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream.HWND_read( m_hwndParent ));
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_fSize );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_lX );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_lY );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_lWidth );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_lHeight );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_fCtx );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_bstrCtxName );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_bstrCtxInfo );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_fURL );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_bstrURL );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_fError );
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__MPC_EXIT_IF_METHOD_FAILS(hr, stream >> m_clsidError );
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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if(hg) ::GlobalFree( hg );
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__HCP_FUNC_EXIT(hr);
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}
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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HCAPI::Locator::Locator()
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{
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// CComPtr<IPCHHelpCenterIPC> m_ipc;
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// CComPtr<IRunningObjectTable> m_rt;
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// CComPtr<IMoniker> m_moniker;
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m_dwRegister = 0; // DWORD m_dwRegister;
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}
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HCAPI::Locator::~Locator()
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{
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Cleanup();
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}
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////////////////////
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void HCAPI::Locator::Cleanup()
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{
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if(m_rt)
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{
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if(m_dwRegister)
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{
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(void)m_rt->Revoke( m_dwRegister );
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m_dwRegister = NULL;
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}
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}
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m_ipc .Release();
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m_rt .Release();
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m_moniker.Release();
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}
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HRESULT HCAPI::Locator::Init( /*[in]*/ REFCLSID clsid, /*[in]*/ IPCHHelpCenterIPC* ipc )
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{
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__HCP_FUNC_ENTRY( "HCAPI::Locator::Init" );
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HRESULT hr;
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Cleanup();
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//
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// Get a pointer to the ROT and create a class moniker.
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//
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__MPC_EXIT_IF_METHOD_FAILS(hr, ::GetRunningObjectTable( 0, &m_rt ));
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__MPC_EXIT_IF_METHOD_FAILS(hr, ::CreateClassMoniker( clsid, &m_moniker ));
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//
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// If IPC != NULL, register as provider, otherwise look for a provider.
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//
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if(ipc)
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{
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__MPC_EXIT_IF_METHOD_FAILS(hr, m_rt->Register( ROTFLAGS_REGISTRATIONKEEPSALIVE, ipc, m_moniker, &m_dwRegister ));
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}
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else
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{
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CComPtr<IUnknown> obj;
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if(SUCCEEDED(m_rt->GetObject( m_moniker, &obj )) && obj)
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{
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// BUILD BREAK __MPC_EXIT_IF_METHOD_FAILS(hr, obj->QueryInterface( IID_IPCHHelpCenterIPC, (void**)&m_ipc ));
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}
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}
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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////////////////////////////////////////
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HRESULT HCAPI::Locator::IsOpen( /*[out]*/ bool& fOpen, /*[in]*/ CLSID* pclsid )
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{
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__HCP_FUNC_ENTRY( "HCAPI::Locator::IsOpen" );
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HRESULT hr;
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fOpen = false;
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if(m_ipc == NULL)
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{
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// BUILD BREAK __MPC_EXIT_IF_METHOD_FAILS(hr, Init( pclsid ? *pclsid : CLSID_PCHHelpCenterIPC ));
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}
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// BUILD BREAK if(m_ipc && SUCCEEDED(m_ipc->Ping()))
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// BUILD BREAK {
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// BUILD BREAK fOpen = true;
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// BUILD BREAK }
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hr = S_OK;
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// BUILD BREAK __HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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HRESULT HCAPI::Locator::ExecCommand( /*[out]*/ CmdData& cd )
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{
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__HCP_FUNC_ENTRY( "HCAPI::Locator::ExecCommand" );
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HRESULT hr;
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PROCESS_INFORMATION piProcessInformation;
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STARTUPINFOW siStartupInfo;
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MPC::NamedMutex nm( L"PCH_COMSERVER" );
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CComBSTR bstrBLOB;
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bool fOpen;
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::ZeroMemory( (PVOID)&piProcessInformation, sizeof( piProcessInformation ) );
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::ZeroMemory( (PVOID)&siStartupInfo , sizeof( siStartupInfo ) ); siStartupInfo.cb = sizeof( siStartupInfo );
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__MPC_EXIT_IF_METHOD_FAILS(hr, cd.Serialize( bstrBLOB ));
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//
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// Before entrying this section, let's acquire the shared mutex, so only one instance of HelpCtr at a time will execute it.
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//
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__MPC_EXIT_IF_METHOD_FAILS(hr, nm.Acquire( 0 ));
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if(cd.m_fMode)
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{
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if(cd.m_dwFlags & HCAPI_MODE_NEW_INSTANCE)
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{
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__MPC_EXIT_IF_METHOD_FAILS(hr, ::CoCreateGuid( &cd.m_clsidCaller ));
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}
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}
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__MPC_EXIT_IF_METHOD_FAILS(hr, IsOpen( fOpen, &cd.m_clsidCaller ));
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if(fOpen)
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{
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// __MPC_EXIT_IF_METHOD_FAILS(hr, m_ipc->Navigate( bstrBLOB ));
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}
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else
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{
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MPC::wstring strExe( c_HelpCtr ); MPC::SubstituteEnvVariables( strExe );
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int iRetries = 100;
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strExe += L" -cmd ";
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strExe += SAFEBSTR( bstrBLOB );
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__MPC_EXIT_IF_CALL_RETURNS_FALSE(hr, ::CreateProcessW( NULL ,
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(LPWSTR)strExe.c_str() ,
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NULL ,
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NULL ,
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FALSE ,
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NORMAL_PRIORITY_CLASS,
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NULL ,
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NULL ,
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&siStartupInfo ,
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&piProcessInformation ));
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while(iRetries--)
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{
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::Sleep( 100 );
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if(SUCCEEDED(Init( cd.m_clsidCaller ))) break;
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}
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__MPC_EXIT_IF_METHOD_FAILS(hr, IsOpen( fOpen, &cd.m_clsidCaller ));
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}
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//
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// If successful, clean the command, but not the caller, it's used to located the same instance of the Help Center.
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//
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cd.m_fSize = false;
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cd.m_fMode = false;
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cd.m_fWindow = false;
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cd.m_fCtx = false;
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cd.m_fURL = false;
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cd.m_fError = false;
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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if(piProcessInformation.hProcess) ::CloseHandle( piProcessInformation.hProcess );
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if(piProcessInformation.hThread ) ::CloseHandle( piProcessInformation.hThread );
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__HCP_FUNC_EXIT(hr);
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}
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HRESULT HCAPI::Locator::PopUp()
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{
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__HCP_FUNC_ENTRY( "HCAPI::Locator::PopUp" );
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HRESULT hr;
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bool fOpen;
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__MPC_EXIT_IF_METHOD_FAILS(hr, IsOpen( fOpen ));
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if(fOpen == false)
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{
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CmdData cd;
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__MPC_EXIT_IF_METHOD_FAILS(hr, ExecCommand( cd ));
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}
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// BUILD BREAK __MPC_EXIT_IF_METHOD_FAILS(hr, m_ipc->Popup());
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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HRESULT HCAPI::Locator::Close()
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{
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__HCP_FUNC_ENTRY( "HCAPI::Locator::Close" );
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HRESULT hr;
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bool fOpen;
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__MPC_EXIT_IF_METHOD_FAILS(hr, IsOpen( fOpen ));
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if(fOpen)
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{
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// BUILD BREAK __MPC_EXIT_IF_METHOD_FAILS(hr, m_ipc->Close());
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m_ipc.Release();
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}
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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HRESULT HCAPI::Locator::WaitForTermination( /*[in]*/ DWORD dwTimeout )
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{
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__HCP_FUNC_ENTRY( "HCAPI::Locator::WaitForTermination" );
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HRESULT hr;
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bool fOpen;
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//
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// Polling implementation...
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//
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while(1)
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{
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DWORD dwWait;
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__MPC_EXIT_IF_METHOD_FAILS(hr, IsOpen( fOpen ));
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if(fOpen == false) break;
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if(dwTimeout == 0)
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{
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__MPC_SET_WIN32_ERROR_AND_EXIT(hr, ERROR_TIMEOUT);
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}
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if(dwTimeout == INFINITE)
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{
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::Sleep( 100 );
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}
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else
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{
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dwWait = min( dwTimeout, 10 );
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::Sleep( dwWait );
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dwTimeout -= dwWait;
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}
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}
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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