337 lines
9.3 KiB
C++
337 lines
9.3 KiB
C++
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// builds an ocx out of the embedding in shembed.c
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#include "priv.h"
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#include "sccls.h"
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#include "olectl.h"
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#include "stdenum.h"
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#include "shocx.h"
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#include "resource.h"
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LCID g_lcidLocale = MAKELCID(LANG_USER_DEFAULT, SORT_DEFAULT);
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#define SUPERCLASS CShellEmbedding
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CShellOcx::CShellOcx(IUnknown* punkOuter, LPCOBJECTINFO poi, const OLEVERB* pverbs, const OLEVERB* pdesignverbs) :
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CShellEmbedding(punkOuter, poi, pverbs),
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_pDesignVerbs(pdesignverbs),
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CImpIDispatch(LIBID_SHDocVw, 1, 1, *(poi->piid))
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{
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// CShellEmbedding class handles the DllAddRef / DllRelease
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m_cpEvents.SetOwner(_GetInner(), poi->piidEvents);
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m_cpPropNotify.SetOwner(_GetInner(), &IID_IPropertyNotifySink);
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_nDesignMode = MODE_UNKNOWN;
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}
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CShellOcx::~CShellOcx()
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{
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// Should have been released when cllient site was set to NULL.... Don't release
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// it here as this will cause some applications like VC5 to fault...
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ASSERT(_pDispAmbient==NULL);
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if (_pClassTypeInfo)
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_pClassTypeInfo->Release();
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}
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//
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// We have a different set of verbs in design mode
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//
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HRESULT CShellOcx::EnumVerbs(IEnumOLEVERB **ppEnumOleVerb)
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{
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TraceMsg(TF_SHDCONTROL, "sho: EnumVerbs");
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if (_IsDesignMode())
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{
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*ppEnumOleVerb = new CSVVerb(_pDesignVerbs);
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if (*ppEnumOleVerb)
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return S_OK;
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}
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return SUPERCLASS::EnumVerbs(ppEnumOleVerb);
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}
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//
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// For the interfaces we support here
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//
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HRESULT CShellOcx::v_InternalQueryInterface(REFIID riid, void **ppvObj)
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{
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static const QITAB qit[] = {
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QITABENT(CShellOcx, IDispatch),
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QITABENT(CShellOcx, IOleControl),
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QITABENT(CShellOcx, IConnectionPointContainer),
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QITABENT(CShellOcx, IPersistStreamInit),
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QITABENTMULTI(CShellOcx, IPersistStream, IPersistStreamInit),
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QITABENT(CShellOcx, IPersistPropertyBag),
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QITABENT(CShellOcx, IProvideClassInfo2),
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QITABENTMULTI(CShellOcx, IProvideClassInfo, IProvideClassInfo2),
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{ 0 },
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};
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HRESULT hr = QISearch(this, qit, riid, ppvObj);
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if (FAILED(hr))
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hr = SUPERCLASS::v_InternalQueryInterface(riid, ppvObj);
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return hr;
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}
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//
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// On a SetClientSite, we need to discard everything created from _pcli
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// because shembed frees _pcli
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//
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HRESULT CShellOcx::SetClientSite(IOleClientSite *pClientSite)
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{
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if (_pDispAmbient)
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{
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_pDispAmbient->Release();
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_pDispAmbient = NULL;
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}
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return SUPERCLASS::SetClientSite(pClientSite);
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}
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HRESULT CShellOcx::Draw(
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DWORD dwDrawAspect,
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LONG lindex,
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void *pvAspect,
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DVTARGETDEVICE *ptd,
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HDC hdcTargetDev,
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HDC hdcDraw,
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LPCRECTL lprcBounds,
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LPCRECTL lprcWBounds,
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BOOL ( __stdcall *pfnContinue )(ULONG_PTR dwContinue),
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ULONG_PTR dwContinue)
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{
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if (_IsDesignMode())
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{
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HBRUSH hbrOld = (HBRUSH)SelectObject(hdcDraw, (HBRUSH)GetStockObject(WHITE_BRUSH));
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HPEN hpenOld = (HPEN)SelectObject(hdcDraw, (HPEN)GetStockObject(BLACK_PEN));
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Rectangle(hdcDraw, lprcBounds->left, lprcBounds->top, lprcBounds->right, lprcBounds->bottom);
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MoveToEx(hdcDraw, lprcBounds->left, lprcBounds->top, NULL);
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LineTo(hdcDraw, lprcBounds->right, lprcBounds->bottom);
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MoveToEx(hdcDraw, lprcBounds->left, lprcBounds->bottom, NULL);
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LineTo(hdcDraw, lprcBounds->right, lprcBounds->top);
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SelectObject(hdcDraw, hbrOld);
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SelectObject(hdcDraw, hpenOld);
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return S_OK;
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}
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return SUPERCLASS::Draw(dwDrawAspect, lindex, pvAspect, ptd, hdcTargetDev, hdcDraw,
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lprcBounds, lprcWBounds, pfnContinue, dwContinue);
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}
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// IPersistStream
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HRESULT CShellOcx::GetSizeMax(ULARGE_INTEGER *pcbSize)
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{
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// REVIEW: this is overly large, I believe E_NOTIMPL is a valid
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// return from this and it tells the container that we don't know how big we are.
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ULARGE_INTEGER cbMax = { 1028 * 8, 0 }; // isn't this overly large?
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*pcbSize = cbMax;
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return S_OK;
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}
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// IOleControl
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STDMETHODIMP CShellOcx::GetControlInfo(LPCONTROLINFO pCI)
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{
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return E_NOTIMPL; // for mnemonics
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}
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STDMETHODIMP CShellOcx::OnMnemonic(LPMSG pMsg)
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{
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return E_NOTIMPL; // for mnemonics
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}
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STDMETHODIMP CShellOcx::OnAmbientPropertyChange(DISPID dispid)
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{
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switch (dispid)
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{
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case DISPID_AMBIENT_USERMODE: // design mode vs run mode
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case DISPID_UNKNOWN:
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_nDesignMode = MODE_UNKNOWN;
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break;
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}
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return S_OK;
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}
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STDMETHODIMP CShellOcx::FreezeEvents(BOOL bFreeze)
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{
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_fEventsFrozen = bFreeze;
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return S_OK;
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}
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HRESULT CShellOcx::GetIDsOfNames(REFIID riid, OLECHAR **rgszNames, UINT cNames, LCID lcid, DISPID *rgdispid)
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{
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// This is gross, for some reason from VBScript in a page can not get "Document" through so try "Doc" and map
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HRESULT hres = CImpIDispatch::GetIDsOfNames(riid, rgszNames, cNames, lcid, rgdispid);
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if (FAILED(hres) && (cNames == 1) && rgszNames)
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{
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OLECHAR const *c_pwszDocument = L"Document";
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if (StrCmpIW(*rgszNames, L"Doc") == 0)
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hres = CImpIDispatch::GetIDsOfNames(riid, (OLECHAR**)&c_pwszDocument, cNames, lcid, rgdispid);
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}
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return hres;
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}
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// ConnectionPointContainer
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CConnectionPoint* CShellOcx::_FindCConnectionPointNoRef(BOOL fdisp, REFIID iid)
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{
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CConnectionPoint* pccp;
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if (IsEqualIID(iid, EVENTIIDOFCONTROL(this)) ||
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(fdisp && IsEqualIID(iid, IID_IDispatch)))
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{
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pccp = &m_cpEvents;
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}
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else if (IsEqualIID(iid, IID_IPropertyNotifySink))
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{
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pccp = &m_cpPropNotify;
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}
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else
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{
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pccp = NULL;
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}
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return pccp;
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}
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STDMETHODIMP CShellOcx::EnumConnectionPoints(LPENUMCONNECTIONPOINTS * ppEnum)
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{
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return CreateInstance_IEnumConnectionPoints(ppEnum, 2,
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m_cpEvents.CastToIConnectionPoint(),
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m_cpPropNotify.CastToIConnectionPoint());
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}
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// IProvideClassInfo2
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STDMETHODIMP CShellOcx::GetClassInfo(LPTYPEINFO * ppTI)
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{
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if (!_pClassTypeInfo)
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GetTypeInfoFromLibId(LANGIDFROMLCID(g_lcidLocale),
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LIBID_SHDocVw, 1, 1, CLSIDOFOBJECT(this), &_pClassTypeInfo);
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if (_pClassTypeInfo)
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{
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_pClassTypeInfo->AddRef();
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*ppTI = _pClassTypeInfo;
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return S_OK;
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}
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ppTI = NULL;
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return E_FAIL;
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}
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// IProvideClassInfo2
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STDMETHODIMP CShellOcx::GetGUID(DWORD dwGuidKind, GUID *pGUID)
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{
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if (pGUID == NULL)
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return E_POINTER;
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if ( (dwGuidKind == GUIDKIND_DEFAULT_SOURCE_DISP_IID)
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&& _pObjectInfo->piidEvents)
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{
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*pGUID = EVENTIIDOFCONTROL(this);
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return S_OK;
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}
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*pGUID = GUID_NULL;
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return E_FAIL;
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}
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// returns TRUE iff MODE_DESIGN
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BOOL CShellOcx::_IsDesignMode(void)
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{
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if (_nDesignMode == MODE_UNKNOWN)
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{
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VARIANT_BOOL fBool;
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if (_GetAmbientProperty(DISPID_AMBIENT_USERMODE, VT_BOOL, &fBool))
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{
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_nDesignMode = fBool ? MODE_FALSE : MODE_TRUE;
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}
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else
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_nDesignMode = MODE_FALSE;
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}
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return _nDesignMode == MODE_TRUE;
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}
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// this table is used for copying data around, and persisting properties.
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// basically, it contains the size of a given data type
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//
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const BYTE g_rgcbDataTypeSize[] = {
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0, // VT_EMPTY = 0,
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0, // VT_NULL = 1,
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sizeof(short), // VT_I2 = 2,
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sizeof(long), // VT_I4 = 3,
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sizeof(float), // VT_R4 = 4,
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sizeof(double), // VT_R8= 5,
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sizeof(CURRENCY), // VT_CY= 6,
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sizeof(DATE), // VT_DATE = 7,
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sizeof(BSTR), // VT_BSTR = 8,
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sizeof(IDispatch *), // VT_DISPATCH = 9,
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sizeof(SCODE), // VT_ERROR = 10,
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sizeof(VARIANT_BOOL), // VT_BOOL = 11,
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sizeof(VARIANT), // VT_VARIANT = 12,
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sizeof(IUnknown *), // VT_UNKNOWN = 13,
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};
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// returns the value of an ambient property
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//
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// Parameters:
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// DISPID - [in] property to get
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// VARTYPE - [in] type of desired data
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// void * - [out] where to put the data
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//
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// Output:
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// BOOL - FALSE means didn't work.
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//
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// Notes:
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//
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BOOL CShellOcx::_GetAmbientProperty(DISPID dispid, VARTYPE vt, void *pData)
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{
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// IE30's WebBrowser OC never requested ambient properties.
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// IE40's does and we're finding that apps implemented some of
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// the properties we care about incorrectly. Assume old classid
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// means this is an old app and fail. The code that calls this
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// is smart enough to deal with failure.
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//
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if (_pObjectInfo->pclsid == &CLSID_WebBrowser_V1)
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return FALSE;
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HRESULT hr = E_FAIL;
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if (!_pDispAmbient && _pcli)
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_pcli->QueryInterface(IID_PPV_ARG(IDispatch, &_pDispAmbient));
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if (_pDispAmbient)
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{
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DISPPARAMS dispparams = {0};
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VARIANT v;
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VariantInit(&v);
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hr = _pDispAmbient->Invoke(dispid, IID_NULL, 0, DISPATCH_PROPERTYGET, &dispparams, &v, NULL, NULL);
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if (SUCCEEDED(hr))
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{
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VARIANT vDest;
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VariantInit(&vDest);
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// we've got the variant, so now go an coerce it to the type
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// that the user wants.
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//
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hr = VariantChangeType(&vDest, &v, 0, vt);
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if (SUCCEEDED(hr))
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{
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// copy the data to where the user wants it
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//
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CopyMemory(pData, &vDest.lVal, g_rgcbDataTypeSize[vt]);
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VariantClear(&vDest);
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}
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VariantClear(&v);
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}
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}
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return SUCCEEDED(hr);
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}
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