////////////////////////////////////////////////////////////////
// If this code works, it was written by Paul DiLascia.
// If not, I don't know who wrote it.
// Compiles with Visual C++ 6.0, runs on Windows 98 and probably NT too.
//
#include "StdAfx.h"
#include "MmsHtmlCtrl.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

void CMmsHtmlCtrl::OnAppCmd(LPCTSTR lpszWhere)
{
	if (_tcsicmp(lpszWhere,_T("ok"))==0) {
		GetParent()->SendMessage(WM_COMMAND,IDOK);
	}
}

void CMmsHtmlCtrl::OnDocumentComplete(LPCTSTR lpszURL) 
{

	CHtmlView::OnDocumentComplete(lpszURL);

	Show_Scroll();
}


void CMmsHtmlCtrl::OnNavigateComplete2(LPCTSTR strURL) 
{
	CHtmlView::OnNavigateComplete2(strURL);

}
BOOL CMmsHtmlCtrl::Show_Scroll() 
{
	HRESULT hr;
	IHTMLDocument2* pDoc = (IHTMLDocument2*)GetHtmlDocument();
	if ( !pDoc )
	{
		return false;
	}
/*
	IHTMLDocument3 *piDoc3 = NULL;
	IHTMLElement *piDocElement = NULL;
	IHTMLElement2 *piDocElement2 = NULL;
	pDoc->QueryInterface(__uuidof(IHTMLDocument3), (void**) &piDoc3);
	piDoc3->get_documentElement(&piDocElement);
	piDocElement->QueryInterface(__uuidof(IHTMLElement2), (void**) &piDocElement2);
	long l=0;
	piDocElement2->get_clientHeight(&l);
*/

	IHTMLElement   *phtmlElement   =   NULL;
	pDoc->get_body(&phtmlElement);   
	pDoc->Release();
	if ( !phtmlElement )
	{
		return false;
	}
	IHTMLElement2   *phtmlElement2   =   NULL;
	hr = phtmlElement->QueryInterface(IID_IHTMLElement2, (void**)&phtmlElement2);
	if(FAILED(hr))
	{
		phtmlElement->Release();
		return false;
	}
	if ( !phtmlElement2)
	{
		phtmlElement->Release();
		return false;
	}

	long lHeight=0;
	long lHeight4=0;
	phtmlElement2->get_clientHeight(&lHeight);
	phtmlElement2->get_scrollHeight(&lHeight4);
	phtmlElement2->Release();
/*
	long lHeight2=0;
	CRect rect;
	m_Html.GetWindowRect(&rect);
	lHeight2=rect.Height();
*/


	IHTMLBodyElement   *phtmlbody   =   NULL;   
	phtmlElement->QueryInterface(IID_IHTMLBodyElement,   (void**)&phtmlbody);   
	if(phtmlbody   !=   NULL)   
	{   
		if (lHeight<lHeight4)
			phtmlbody->put_scroll(BSTR(_T("yes")));
		else
			phtmlbody->put_scroll(BSTR(_T("no")));
		phtmlbody->Release();   
		phtmlElement->Release();   
	}   
	phtmlElement->Release();

	return true;
}
BOOL CMmsHtmlCtrl::PreTranslateMessage(MSG* pMsg) 
{
	if ((pMsg->message == WM_RBUTTONDOWN)||(pMsg->message == WM_RBUTTONDBLCLK))
	{
		CPoint point(pMsg->pt);
		ScreenToClient(&point);
		/*
		IHTMLDocument2* pdoc2=NULL;
		IHTMLElement* pElement=NULL;
		IDispatch* pDisp=NULL;
		pDisp=GetHtmlDocument();
		pDisp->QueryInterface(IID_IHTMLDocument2,(void**)&pdoc2);
		pDisp->Release();
		
		pdoc2->elementFromPoint(point.x,point.y,&pElement);
		pdoc2->Release();
		if(pElement){
			BSTR ID;
			pElement->get_id(&ID);
			pElement->Release();
			CString str=(LPCTSTR)(_bstr_t)ID;
			if(str==_T("Layer1")){
				CMenu menu;
				menu.LoadMenu(IDR_MENU1 );
				CMenu* pmenu=menu.GetSubMenu(0);
				pmenu->TrackPopupMenu(0,pMsg->pt.x,pMsg->pt.y,this);
			}
		}
		*/
		return TRUE;//如果想完全屏蔽掉,不显示任何菜单,直接返回TRUE就行,上面这些代码演示了怎么对html中特定ID的元素弹出自己想要显示的菜单 
	}
	else
	{
		return CHtmlView::PreTranslateMessage(pMsg);
	}
}