Source code of Windows XP (NT5)
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//==============================================================;
//
// This source code is only intended as a supplement to existing Microsoft documentation.
//
//
//
//
// 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) 1999 Microsoft Corporation. All Rights Reserved.
//
//
//
//==============================================================;
#include "Comp.h"
#include "sky.h"
#include "nameext.h"
#include "DataObj.h"
#include "globals.h"
#include "resource.h"
#include <crtdbg.h>
// we need to do this to get around MMC.IDL - it explicitly defines
// the clipboard formats as WCHAR types...
#define _T_CCF_DISPLAY_NAME _T("CCF_DISPLAY_NAME")
#define _T_CCF_NODETYPE _T("CCF_NODETYPE")
#define _T_CCF_SNAPIN_CLASSID _T("CCF_SNAPIN_CLASSID")
// These are the clipboard formats that we must supply at a minimum.
// mmc.h actually defined these. We can make up our own to use for
// other reasons. We don't need any others at this time.
UINT CComponentData::s_cfDisplayName = RegisterClipboardFormat(_T_CCF_DISPLAY_NAME);
UINT CComponentData::s_cfNodeType = RegisterClipboardFormat(_T_CCF_NODETYPE);
UINT CComponentData::s_cfSnapInCLSID = RegisterClipboardFormat(_T_CCF_SNAPIN_CLASSID);
const GUID CComponentData::skybasedvehicleGuid = { 0x2974380f, 0x4c4b, 0x11d2, { 0x89, 0xd8, 0x0, 0x0, 0x21, 0x47, 0x31, 0x28 } };
HBITMAP CComponentData::m_pBMapSm = NULL;
HBITMAP CComponentData::m_pBMapLg = NULL;
CComponentData::CComponentData()
: m_cref(0), bExpanded(FALSE), m_ipConsoleNameSpace(NULL), m_ipConsole(NULL)
{
if (NULL == m_pBMapSm || NULL == m_pBMapLg)
LoadBitmaps();
OBJECT_CREATED
}
CComponentData::~CComponentData()
{
OBJECT_DESTROYED
}
///////////////////////
// IUnknown implementation
///////////////////////
STDMETHODIMP CComponentData::QueryInterface(REFIID riid, LPVOID *ppv)
{
if (!ppv)
return E_FAIL;
*ppv = NULL;
if (IsEqualIID(riid, IID_IUnknown))
*ppv = static_cast<IComponentData *>(this);
else if (IsEqualIID(riid, IID_IComponentData))
*ppv = static_cast<IComponentData *>(this);
else if (IsEqualIID(riid, IID_IExtendContextMenu))
*ppv = static_cast<IExtendContextMenu *>(this);
if (*ppv)
{
reinterpret_cast<IUnknown *>(*ppv)->AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
STDMETHODIMP_(ULONG) CComponentData::AddRef()
{
return InterlockedIncrement((LONG *)&m_cref);
}
STDMETHODIMP_(ULONG) CComponentData::Release()
{
if (InterlockedDecrement((LONG *)&m_cref) == 0)
{
// we need to decrement our object count in the DLL
delete this;
return 0;
}
return m_cref;
}
///////////////////////////////
// Interface IComponentData
///////////////////////////////
HRESULT CComponentData::Initialize(
/* [in] */ LPUNKNOWN pUnknown)
{
HRESULT hr;
//
// Get pointer to name space interface
//
hr = pUnknown->QueryInterface(IID_IConsoleNameSpace, (void **)&m_ipConsoleNameSpace);
_ASSERT( S_OK == hr );
//
// Get pointer to console interface
//
hr = pUnknown->QueryInterface(IID_IConsole, (void **)&m_ipConsole);
_ASSERT( S_OK == hr );
IImageList *pImageList;
m_ipConsole->QueryScopeImageList(&pImageList);
_ASSERT( S_OK == hr );
hr = pImageList->ImageListSetStrip( (long *)m_pBMapSm, // pointer to a handle
(long *)m_pBMapLg, // pointer to a handle
0, // index of the first image in the strip
RGB(0, 128, 128) // color of the icon mask
);
pImageList->Release();
return S_OK;
}
HRESULT CComponentData::CreateComponent(
/* [out] */ LPCOMPONENT __RPC_FAR *ppComponent)
{
*ppComponent = NULL;
CComponent *pComponent = new CComponent(this);
if (NULL == pComponent)
return E_OUTOFMEMORY;
return pComponent->QueryInterface(IID_IComponent, (void **)ppComponent);
}
HRESULT CComponentData::Notify(
/* [in] */ LPDATAOBJECT lpDataObject,
/* [in] */ MMC_NOTIFY_TYPE event,
/* [in] */ LPARAM arg,
/* [in] */ LPARAM param)
{
MMCN_Crack(TRUE, lpDataObject, this, NULL, event, arg, param);
HRESULT hr = S_FALSE;
if (NULL == lpDataObject)
return hr;
switch (event)
{
case MMCN_EXPAND:
GUID myGuid;
GUID* pGUID= &myGuid;
// extract GUID of the the currently selected node type from the data object
hr = ExtractObjectTypeGUID(lpDataObject, pGUID);
_ASSERT( S_OK == hr );
// compare node type GUIDs of currently selected node and the node type
// we want to extend. If they are are equal, currently selected node
// is the type we want to extend, so we add our items underneath it
if (IsEqualGUID(*pGUID, getPrimaryNodeType()))
OnExpand(m_ipConsoleNameSpace, m_ipConsole, (HSCOPEITEM)param);
else
// currently selected node is one of ours instead
{
CDelegationBase *base = GetOurDataObject(lpDataObject)->GetBaseNodeObject();
hr = base->OnExpand(m_ipConsoleNameSpace, m_ipConsole, (HSCOPEITEM)param);
}
break;
}
return hr;
}
HRESULT CComponentData::Destroy( void)
{
// Free interfaces
if (m_ipConsoleNameSpace) {
m_ipConsoleNameSpace->Release();
m_ipConsoleNameSpace = NULL;
}
if (m_ipConsole) {
m_ipConsole->Release();
m_ipConsole = NULL;
}
return S_OK;
}
HRESULT CComponentData::QueryDataObject(
/* [in] */ MMC_COOKIE cookie,
/* [in] */ DATA_OBJECT_TYPES type,
/* [out] */ LPDATAOBJECT *ppDataObject)
{
CDataObject *pObj = NULL;
//cookie == 0 not possible in a namespace extension
// if (cookie == 0)
// pObj = new CDataObject((MMC_COOKIE)m_pComponentData->m_pStaticNode, type);
// else
pObj = new CDataObject(cookie, type);
if (!pObj)
return E_OUTOFMEMORY;
pObj->QueryInterface(IID_IDataObject, (void **)ppDataObject);
return S_OK;
}
HRESULT CComponentData::GetDisplayInfo(
/* [out][in] */ SCOPEDATAITEM *pScopeDataItem)
{
HRESULT hr = S_FALSE;
// if they are asking for the SDI_STR we have one of those to give
if (pScopeDataItem->lParam) {
CDelegationBase *base = (CDelegationBase *)pScopeDataItem->lParam;
if (pScopeDataItem->mask & SDI_STR) {
LPCTSTR pszT = base->GetDisplayName();
MAKE_WIDEPTR_FROMTSTR_ALLOC(pszW, pszT);
pScopeDataItem->displayname = pszW;
}
if (pScopeDataItem->mask & SDI_IMAGE) {
pScopeDataItem->nImage = base->GetBitmapIndex();
}
}
return hr;
}
HRESULT CComponentData::CompareObjects(
/* [in] */ LPDATAOBJECT lpDataObjectA,
/* [in] */ LPDATAOBJECT lpDataObjectB)
{
CDelegationBase *baseA = GetOurDataObject(lpDataObjectA)->GetBaseNodeObject();
CDelegationBase *baseB = GetOurDataObject(lpDataObjectB)->GetBaseNodeObject();
// compare the object pointers
if (baseA->GetCookie() == baseB->GetCookie())
return S_OK;
return S_FALSE;
}
///////////////////////////////
// Interface IExtendContextMenu
///////////////////////////////
HRESULT CComponentData::AddMenuItems(
/* [in] */ LPDATAOBJECT piDataObject,
/* [in] */ LPCONTEXTMENUCALLBACK piCallback,
/* [out][in] */ long __RPC_FAR *pInsertionAllowed)
{
CDelegationBase *base = GetOurDataObject(piDataObject)->GetBaseNodeObject();
return base->OnAddMenuItems(piCallback, pInsertionAllowed);
}
HRESULT CComponentData::Command(
/* [in] */ long lCommandID,
/* [in] */ LPDATAOBJECT piDataObject)
{
CDelegationBase *base = GetOurDataObject(piDataObject)->GetBaseNodeObject();
return base->OnMenuCommand(m_ipConsole, lCommandID);
}
///////////////////////////////
// CComponentData::OnExpand
///////////////////////////////
HRESULT CComponentData::OnExpand(IConsoleNameSpace *pConsoleNameSpace, IConsole *pConsole, HSCOPEITEM parent)
{
//first create the CSkyVehicle objects, one for each inserted item
for (int n = 0; n < NUMBER_OF_CHILDREN; n++) {
children[n] = new CSkyVehicle(n + 1);
}
//now fill an SCOPEDATAITEM for each item and then insert it
SCOPEDATAITEM sdi;
if (!bExpanded) {
// create the child nodes, then expand them
for (int n = 0; n < NUMBER_OF_CHILDREN; n++) {
ZeroMemory(&sdi, sizeof(SCOPEDATAITEM) );
sdi.mask = SDI_STR | // Displayname is valid
SDI_PARAM | // lParam is valid
SDI_IMAGE | // nImage is valid
SDI_OPENIMAGE | // nOpenImage is valid
SDI_PARENT | // relativeID is valid
SDI_CHILDREN; // cChildren is valid
sdi.relativeID = (HSCOPEITEM)parent;
sdi.nImage = children[n]->GetBitmapIndex();
sdi.nOpenImage = INDEX_OPENFOLDER;
sdi.displayname = MMC_CALLBACK;
sdi.lParam = (LPARAM)children[n]; // The cookie
sdi.cChildren = 0;
HRESULT hr = pConsoleNameSpace->InsertItem( &sdi );
_ASSERT( SUCCEEDED(hr) );
}
}
return S_OK;
}
///////////////////////////////
// Member functions for extracting
// information from a primary's
// data object
///////////////////////////////
HRESULT CComponentData::ExtractData( IDataObject* piDataObject,
CLIPFORMAT cfClipFormat,
BYTE* pbData,
DWORD cbData )
{
HRESULT hr = S_OK;
FORMATETC formatetc = {cfClipFormat, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
STGMEDIUM stgmedium = {TYMED_HGLOBAL, NULL};
stgmedium.hGlobal = ::GlobalAlloc(GPTR, cbData);
do // false loop
{
if (NULL == stgmedium.hGlobal)
{
hr = E_OUTOFMEMORY;
break;
}
hr = piDataObject->GetDataHere( &formatetc, &stgmedium );
if ( FAILED(hr) )
{
break;
}
BYTE* pbNewData = reinterpret_cast<BYTE*>(stgmedium.hGlobal);
if (NULL == pbNewData)
{
hr = E_UNEXPECTED;
break;
}
::memcpy( pbData, pbNewData, cbData );
} while (FALSE); // false loop
if (NULL != stgmedium.hGlobal)
{
::GlobalFree(stgmedium.hGlobal);
}
return hr;
} // ExtractData()
HRESULT CComponentData::ExtractString( IDataObject *piDataObject,
CLIPFORMAT cfClipFormat,
_TCHAR *pstr,
DWORD cchMaxLength)
{
return ExtractData( piDataObject, cfClipFormat, (PBYTE)pstr, cchMaxLength );
}
HRESULT CComponentData::ExtractSnapInCLSID( IDataObject* piDataObject, CLSID* pclsidSnapin )
{
return ExtractData( piDataObject, s_cfSnapInCLSID, (PBYTE)pclsidSnapin, sizeof(CLSID) );
}
HRESULT CComponentData::ExtractObjectTypeGUID( IDataObject* piDataObject, GUID* pguidObjectType )
{
return ExtractData( piDataObject, s_cfNodeType, (PBYTE)pguidObjectType, sizeof(GUID) );
}