WindowsXP-SP1/enduser/stuff/hhctrl/ctlocx96.cpp

// Copyright (C) 1996-1997 Microsoft Corporation. All rights reserved.

//
// implementation of the OCX 96 interfaces that don't quite fit in to the
// categories covered by embedding, persistence, and ctlmisc.cpp
//
//

#include "header.h"
#include "internet.h"

//=--------------------------------------------------------------------------=
// COleControl::GetActivationPolicy    [IPointerInactive]
//=--------------------------------------------------------------------------=
// returns the present activation policy for this object.  for non-subclassed
// windows controls, this means we can put off in-place activation for quite
// a while.
//
// Parameters:
//	  DWORD *		 - [out] activation policy
//
// Output:
//	  HRESULT
//
// Notes:
//
STDMETHODIMP COleControl::GetActivationPolicy
(
	DWORD *pdwPolicy
)
{
	CHECK_POINTER(pdwPolicy);

	// just get the policy in the global structure describing this control.
	//
	*pdwPolicy = ACTIVATIONPOLICYOFCONTROL(m_ObjectType);
	return S_OK;
}

//=--------------------------------------------------------------------------=
// COleControl::OnInactiveMouseMove    [IPointerInactive]
//=--------------------------------------------------------------------------=
// indicates to an inactive oobject that the mouse pointer has moved over the
// object.
//
// Parameters:
//	  LPCRECT			 - [in]
//	  long				 - [in]
//	  long				 - [in]
//	  DWORD 			 - [in]
//
// Output:
//	  HRESULT
//
// Notes:
//
STDMETHODIMP COleControl::OnInactiveMouseMove
(
	LPCRECT pRectBounds,
	long	x,
	long	y,
	DWORD	dwMouseMsg
)
{
	// OVERRIDE: end control writers should just override this if they want
	// to have a control that is never in-place active.
	//
	return S_OK;
}

//=--------------------------------------------------------------------------=
// COleControl::OnInactiveSetCursor    [IPointerInactive]
//=--------------------------------------------------------------------------=
// called by the container for the inactive object under the mouse pointer on
// recept of a WM_SETCURSOR message.
//
// Parameters:
//	  LPCRECT			 - [in]
//	  long				 - [in]
//	  long				 - [in]
//	  DWORD 			 - [in]
//	  BOOL				 - [in]
//
// Output:
//	  HRESULT
//
// Notes:
//
STDMETHODIMP COleControl::OnInactiveSetCursor
(
	LPCRECT pRectBounds,
	long	x,
	long	y,
	DWORD	dwMouseMsg,
	BOOL	fSetAlways
)
{
	// OVERRIDE:  just get the user to override this if they want to never
	// be activated
	//
	return S_OK;
}

//=--------------------------------------------------------------------------=
// COleControl::QuickActivate	 [IQuickActivate]
//=--------------------------------------------------------------------------=
// allows the container to activate the control.
//
// Parameters:
//	  QACONTAINER * 	   - [in]  info about the container
//	  QACONTROL *		   - [out] info about the control
//
// Output:
//	  HRESULT
//
// Notes:
//
STDMETHODIMP COleControl::QuickActivate
(
	QACONTAINER *pContainer,
	QACONTROL *pControl
)
{
	HRESULT hr;
	DWORD	dw;

	// we need these guys.
	//
	if (!pContainer) return E_UNEXPECTED;
	if (!pControl) return E_UNEXPECTED;

	// start grabbing things from the QACONTAINER structure and apply them
	// as relevant
	//
	if (pContainer->cbSize < sizeof(QACONTAINER)) return E_UNEXPECTED;
	if (pControl->cbSize < sizeof(QACONTROL)) return E_UNEXPECTED;

	// save out the client site, of course.
	//
	if (pContainer->pClientSite) {
		hr = SetClientSite(pContainer->pClientSite);
		RETURN_ON_FAILURE(hr);
	}

	// if the lcid is not LANG_NEUTRAL, score!
	//
	if (pContainer->lcid) {
		g_lcidLocale = pContainer->lcid;
		g_fHaveLocale = TRUE;
	}

	// hook up some notifications.	first property notifications.

	if (pContainer->pPropertyNotifySink) {
		pContainer->pPropertyNotifySink->AddRef();
		hr = m_cpPropNotify.AddSink((void *)pContainer->pPropertyNotifySink, &pControl->dwPropNotifyCookie);
		if (FAILED(hr)) {
			pContainer->pPropertyNotifySink->Release();
			return hr;
		}
	}

	// then the event sink.
	//
	if (pContainer->pUnkEventSink) {
		hr = m_cpEvents.Advise(pContainer->pUnkEventSink, &pControl->dwEventCookie);
		if (FAILED(hr)) {
			pContainer->pUnkEventSink->Release();
			return hr;
		}
	}

	// finally, the advise sink.
	//
	if (pContainer->pAdviseSink) {
		// don't need to pass the cookie back since there can only be one
		// person advising at a time.
		//
		hr = Advise(pContainer->pAdviseSink, &dw);
		RETURN_ON_FAILURE(hr);
	}

	// set up a few things in the QACONTROL structure.	we're opaque by default
	//
	pControl->dwMiscStatus = OLEMISCFLAGSOFCONTROL(m_ObjectType);
	pControl->dwViewStatus = FCONTROLISOPAQUE(m_ObjectType) ? VIEWSTATUS_OPAQUE : 0;
	pControl->dwPointerActivationPolicy = ACTIVATIONPOLICYOFCONTROL(m_ObjectType);

	// that's pretty much all we're interested in.	we will, however, pass on the
	// rest of the things to the end control writer and see if they want to do
	// anything with them. they shouldn't touch any of the above except for the
	// ambients.
	//
	return OnQuickActivate(pContainer, &(pControl->dwViewStatus));
}

//=--------------------------------------------------------------------------=
// COleControl::SetContentExtent	[IQuickActivate]
//=--------------------------------------------------------------------------=
// the container calls this to set the content extent of the control.
//
// Parameters:
//	  LPSIZEL			 - [in] the size of the content extent
//
// Output:
//	  HRESULT			 - S_OK, or E_FAIL for fixed size control
//
// Notes:
//
STDMETHODIMP COleControl::SetContentExtent
(
	LPSIZEL pSize
)
{
	return SetExtent(DVASPECT_CONTENT, pSize);
}

//=--------------------------------------------------------------------------=
// COleControl::GetContentExtent	[IQuickActivate]
//=--------------------------------------------------------------------------=
// the container calls this to get the content extent of the control
//
// Parameters:
//	  LPSIZEL		 - [out] returns current size
//
// Output:
//	  HRESULT
//
// Notes:
//
STDMETHODIMP COleControl::GetContentExtent
(
	LPSIZEL pSize
)
{
	return GetExtent(DVASPECT_CONTENT, pSize);
}

//=--------------------------------------------------------------------------=
// COleControl::OnQuickActivate    [overridable]
//=--------------------------------------------------------------------------=
// not all the of the members of the QACONTAINER need to be consumed by the
// framework, but are, at least, extremely interesting.  thus, we will pass
// on the struture to the end control writer, and let them consume these.
//
// Parameters:
//	  QACONTAINER * 		   - [in]  contains additional information
//	  DWORD *				   - [out] put ViewStatus flags here.
//
// Output:
//	  HRESULT
//
// Notes:
//	  - control writers should only look at/consume:
//		  a. dwAmbientFlags
//		  b. colorFore/colorBack
//		  c. pFont
//		  d. pUndoMgr
//		  e. dwAppearance
//		  f. hpal
//
//	  - all the others are set up the for the user by the framework.
//	  - control writers should set up the pdwViewStatus with flags as per
//		IViewObjectEx::GetViewStatus.  if you don't know what this is or don't
//		care, then don't touch.
//
HRESULT COleControl::OnQuickActivate
(
	QACONTAINER *pContainer,
	DWORD		*pdwViewStatus
)
{
	// by default, nuthin much to do!
	//
	return S_OK;
}