Custom Tab Controls, Tabbed Frame and Tabbed MDI

// HtmlView.h : interface of the CHtmlView class
//
/////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_HtmlView_H__053AD676_0AE2_11D6_8BF1_00500477589F__INCLUDED_)
#define AFX_HtmlView_H__053AD676_0AE2_11D6_8BF1_00500477589F__INCLUDED_

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000

class CHtmlView:
	public CWindowImpl<CHtmlView, CAxWindow>
{
public:
	HRESULT get_Control(IUnknown** ppControl)
	{
		if(m_hWnd != NULL)
		{
			return CAxWindow::QueryControl(ppControl);
		}
		return NULL;
	}

	HRESULT get_Browser(IWebBrowser2** ppBrowser)
	{
		if(m_hWnd != NULL)
		{
			return CAxWindow::QueryControl(ppBrowser);
		}
		return NULL;
	}

public:
	DECLARE_WND_SUPERCLASS(_T("HtmlView"), CAxWindow::GetWndClassName())

	BOOL PreTranslateMessage(MSG* pMsg)
	{
		if((pMsg->message < WM_KEYFIRST || pMsg->message > WM_KEYLAST) &&
		   (pMsg->message < WM_MOUSEFIRST || pMsg->message > WM_MOUSELAST))
			return FALSE;

		// give HTML page a chance to translate this message
		return (BOOL)SendMessage(WM_FORWARDMSG, 0, (LPARAM)pMsg);
	}

	BEGIN_MSG_MAP(CHtmlView)
		MESSAGE_HANDLER(WM_CREATE, OnCreate)
		MESSAGE_HANDLER(WM_DESTROY, OnDestroy)
		MESSAGE_HANDLER(WM_SETFOCUS, OnSetFocus)
		DEFAULT_REFLECTION_HANDLER()
	END_MSG_MAP()

// Handler prototypes (uncomment arguments if needed):
//	LRESULT MessageHandler(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
//	LRESULT CommandHandler(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
//	LRESULT NotifyHandler(int /*idCtrl*/, LPNMHDR /*pnmh*/, BOOL& /*bHandled*/)

	LRESULT OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
	{
		// "base::OnCreate"
		LRESULT nResult = DefWindowProc(uMsg, wParam, lParam);

		//CAxWindow::QueryControl(&m_pBrowser);
		//if(m_pBrowser)
		//{
		//	DispEventAdvise(m_pBrowser, &DIID_DWebBrowserEvents2);
		//}

		bHandled = TRUE;
		return nResult;
	}

	LRESULT OnDestroy(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& bHandled)
	{
		//if(m_pBrowser)
		//{
		//	DispEventUnadvise(m_pBrowser, &DIID_DWebBrowserEvents2);
		//}

		bHandled = FALSE;
		return 0;
	}

	LRESULT OnSetFocus(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& bHandled)
	{
		// The base class ActiveX hosting code for forwarding focus doesn't work well
		// with Internet Explorer, so we'll do it ourself.
		CComPtr<IOleObject> oleObject;
		this->QueryControl(&oleObject);
		if(oleObject)
		{
			CComPtr<IOleClientSite> oleClientSite; 
			this->QueryHost(&oleClientSite);
			if(oleClientSite)
			{
				CRect rcControl;
				this->GetClientRect(&rcControl);
				oleObject->DoVerb(OLEIVERB_UIACTIVATE, NULL, oleClientSite, 0, m_hWnd, &rcControl);
			}
		}

		// Other variations:
		/*
		CComPtr<IWebBrowser2> webBrowser;
		this->QueryControl(&webBrowser);
		if(webBrowser)
		{
			CComPtr<IDispatch> documentDisp;
			webBrowser->get_Document(&documentDisp);
			CComQIPtr<IHTMLDocument2> htmlDocument2(documentDisp);
			if(htmlDocument2)
			{
				bool handled = false;
				CComPtr<IHTMLElement> activeElement;
				htmlDocument2->get_activeElement(&activeElement);
				CComQIPtr<IHTMLElement2> activeElement2(activeElement);
				if(activeElement2)
				{
					handled = true;
					activeElement2->focus();
				}

				if(!handled)
				{
					CComPtr<IHTMLWindow2> parentWindow;
					htmlDocument2->get_parentWindow(&parentWindow);
					if(parentWindow)
					{
						parentWindow->focus();
					}
				}
			}
		}
		*/

		/*
		HWND hWndFocus = ::GetFocus();

		HWND hWndShellEmbedding = ::FindWindowEx(m_hWnd, NULL, _T("Shell Embedding"), NULL);
		if(hWndShellEmbedding)
		{
			HWND hWndShellDocObjectView = ::FindWindowEx(hWndShellEmbedding, NULL, _T("Shell DocObject View"), NULL);
			if(hWndShellDocObjectView )
			{
				HWND hWndInternetExplorerServer = ::FindWindowEx(hWndShellDocObjectView, NULL, _T("Internet Explorer_Server"), NULL);
				if(!::IsChild(hWndInternetExplorerServer, hWndFocus))
				{
					::SetFocus(hWndInternetExplorerServer);
				}
			}
		}
		*/

		/*
		HWND hWndFocus = ::GetFocus();

		HWND hWndShellEmbedding = ::GetWindow(m_hWnd, GW_CHILD);
		if(hWndShellEmbedding)
		{
			HWND hWndShellDocObjectView = ::GetWindow(hWndShellEmbedding, GW_CHILD);
			if(hWndShellDocObjectView )
			{
				HWND hWndInternetExplorerServer = ::GetWindow(hWndShellDocObjectView, GW_CHILD);
				if(!::IsChild(hWndInternetExplorerServer, hWndFocus))
				{
					::SetFocus(hWndInternetExplorerServer);
				}
			}
		}
		*/

		bHandled = FALSE;
		return 0;
	}

};


/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_HtmlView_H__053AD676_0AE2_11D6_8BF1_00500477589F__INCLUDED_)