/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 *
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
 * Reserved.
 */

#include "stdafx.h"

#include <limits.h>

#include "WebShellContainer.h"

CWebShellContainer::CWebShellContainer(CMozillaBrowser *pOwner)
{
	NS_INIT_REFCNT();
	m_pOwner = pOwner;
	m_pEvents1 = m_pOwner;
	m_pEvents2 = m_pOwner;
}


CWebShellContainer::~CWebShellContainer()
{
}


///////////////////////////////////////////////////////////////////////////////
// nsISupports implementation

NS_IMPL_ADDREF(CWebShellContainer)
NS_IMPL_RELEASE(CWebShellContainer)
NS_IMPL_QUERY_HEAD(CWebShellContainer)
	NS_IMPL_QUERY_BODY(nsIBrowserWindow)
	NS_IMPL_QUERY_BODY(nsIStreamObserver)
	NS_IMPL_QUERY_BODY(nsIDocumentLoaderObserver)
	NS_IMPL_QUERY_BODY(nsIWebShellContainer)
NS_IMPL_QUERY_TAIL(nsIStreamObserver)


///////////////////////////////////////////////////////////////////////////////
// nsIBrowserWindow implementation

NS_IMETHODIMP
CWebShellContainer::Init(nsIAppShell* aAppShell, nsIPref* aPrefs, const nsRect& aBounds, PRUint32 aChromeMask, PRBool aAllowPlugins)
{
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::MoveTo(PRInt32 aX, PRInt32 aY)
{
	NG_TRACE_METHOD(CWebShellContainer::MoveTo);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::SizeTo(PRInt32 aWidth, PRInt32 aHeight)
{
	NG_TRACE_METHOD(CWebShellContainer::SizeTo);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::SizeWindowTo(PRInt32 aWidth, PRInt32 aHeight)
{
	NG_TRACE_METHOD(CWebShellContainer::SizeWindowTo);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::SizeContentTo(PRInt32 aWidth, PRInt32 aHeight)
{
	NG_TRACE_METHOD(CWebShellContainer::SizeContentTo);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::GetContentBounds(nsRect& aResult)
{
	NG_TRACE_METHOD(CWebShellContainer::GetContentBounds);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::GetBounds(nsRect& aResult)
{
	NG_TRACE_METHOD(CWebShellContainer::GetBounds);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::GetWindowBounds(nsRect& aResult)
{
	NG_TRACE_METHOD(CWebShellContainer::GetWindowBounds);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::IsIntrinsicallySized(PRBool& aResult)
{
	NG_TRACE_METHOD(CWebShellContainer::IsIntrinsicallySized);
    aResult = PR_FALSE;
    return NS_OK;
}

NS_IMETHODIMP
CWebShellContainer::ShowAfterCreation()
{
  return NS_OK;
}

NS_IMETHODIMP
CWebShellContainer::Show()
{
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::Hide()
{
	NG_TRACE_METHOD(CWebShellContainer::Hide);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::Close()
{
	NG_TRACE_METHOD(CWebShellContainer::Close);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::ShowModally(PRBool aPrepare)
{
	NG_TRACE_METHOD(CWebShellContainer::ShowModally);
	return NS_OK;
}

NS_IMETHODIMP
CWebShellContainer::SetChrome(PRUint32 aNewChromeMask)
{
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::GetChrome(PRUint32& aChromeMaskResult)
{
	NG_TRACE_METHOD(CWebShellContainer::GetChrome);
	aChromeMaskResult = 0;
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::SetTitle(const PRUnichar* aTitle)
{
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::GetTitle(const PRUnichar** aResult)
{
	NG_TRACE_METHOD(CWebShellContainer::GetTitle);
	*aResult = nsnull;
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::SetStatus(const PRUnichar* aStatus)
{
	NG_TRACE_METHOD(CWebShellContainer::SetStatus);
	
	BSTR bstrStatus = SysAllocString(W2OLE((PRUnichar *) aStatus));
	m_pEvents1->Fire_StatusTextChange(bstrStatus);
	m_pEvents2->Fire_StatusTextChange(bstrStatus);

	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::GetStatus(const PRUnichar** aResult)
{
	NG_TRACE_METHOD(CWebShellContainer::GetStatus);
	*aResult = nsnull;
	return NS_OK;
}

NS_IMETHODIMP
CWebShellContainer::SetDefaultStatus(const PRUnichar* aStatus)
{
	NG_TRACE_METHOD(CWebShellContainer::SetDefaultStatus);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::GetDefaultStatus(const PRUnichar** aResult)
{
	NG_TRACE_METHOD(CWebShellContainer::GetDefaultStatus);
	*aResult = nsnull;
	return NS_OK;
}

NS_IMETHODIMP
CWebShellContainer::SetProgress(PRInt32 aProgress, PRInt32 aProgressMax)
{
	NG_TRACE_METHOD(CWebShellContainer::SetProgress);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::ShowMenuBar(PRBool aShow)
{
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::GetWebShell(nsIWebShell*& aResult)
{
	NG_TRACE_METHOD(CWebShellContainer::GetWebShell);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::GetContentWebShell(nsIWebShell **aResult)
{
	NG_TRACE_METHOD(CWebShellContainer::GetContentWebShell);
	*aResult = nsnull;
	return NS_OK;
}



///////////////////////////////////////////////////////////////////////////////
// nsIWebShellContainer implementation


NS_IMETHODIMP
CWebShellContainer::WillLoadURL(nsIWebShell* aShell, const PRUnichar* aURL, nsLoadType aReason)
{
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::WillLoadURL(..., \"%s\", %d)\n"), W2T(aURL), (int) aReason);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::BeginLoadURL(nsIWebShell* aShell, const PRUnichar* aURL)
{
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::BeginLoadURL(..., \"%s\")\n"), W2T(aURL));

	// Fire a DownloadBegin
	m_pEvents1->Fire_DownloadBegin();
	m_pEvents2->Fire_DownloadBegin();

	// Fire a BeforeNavigate event
	OLECHAR *pszURL = W2OLE((WCHAR *)aURL);
	BSTR bstrURL = SysAllocString(pszURL);
	BSTR bstrTargetFrameName = NULL;
	BSTR bstrHeaders = NULL;
	VARIANT *pvPostData = NULL;
	VARIANT_BOOL bCancel = VARIANT_FALSE;
	long lFlags = 0;

	m_pEvents1->Fire_BeforeNavigate(bstrURL, lFlags, bstrTargetFrameName, pvPostData, bstrHeaders, &bCancel);

	// Fire a BeforeNavigate2 event
	CComVariant vURL(bstrURL);
	CComVariant vFlags(lFlags);
	CComVariant vTargetFrameName(bstrTargetFrameName);
	CComVariant vHeaders(bstrHeaders);

	m_pEvents2->Fire_BeforeNavigate2(m_pOwner, &vURL, &vFlags, &vTargetFrameName, pvPostData, &vHeaders, &bCancel);

	SysFreeString(bstrURL);
	SysFreeString(bstrTargetFrameName);
	SysFreeString(bstrHeaders);

	if (bCancel == VARIANT_TRUE)
	{
		return NS_ERROR_ABORT;
	}
	else
	{
		m_pOwner->m_bBusy = TRUE;
	}
	return NS_OK;
}


#define FPKLUDGE
#ifdef FPKLUDGE
#include <float.h>
#endif

NS_IMETHODIMP
CWebShellContainer::ProgressLoadURL(nsIWebShell* aShell, const PRUnichar* aURL, PRInt32 aProgress, PRInt32 aProgressMax)
{
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::ProgressLoadURL(..., \"%s\", %d, %d)\n"), W2T(aURL), (int) aProgress, (int) aProgressMax);
	
	long nProgress = aProgress;
	long nProgressMax = aProgressMax;

	if (nProgress == 0)
	{
	}
	if (nProgressMax == 0)
	{
		nProgressMax = LONG_MAX;
	}
	if (nProgress > nProgressMax)
	{
		nProgress = nProgressMax; // Progress complete
	}

#ifdef FPKLUDGE
	_fpreset();
#endif

	m_pEvents1->Fire_ProgressChange(nProgress, nProgressMax);
	m_pEvents2->Fire_ProgressChange(nProgress, nProgressMax);

	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::EndLoadURL(nsIWebShell* aShell, const PRUnichar* aURL, nsresult aStatus)
{
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::EndLoadURL(..., \"%s\", %d)\n"), W2T(aURL), (int) aStatus);

	// Fire a NavigateComplete event
	OLECHAR *pszURL = W2OLE((WCHAR *) aURL);
	BSTR bstrURL = SysAllocString(pszURL);
	m_pEvents1->Fire_NavigateComplete(bstrURL);

	// Fire a NavigateComplete2 event
	CComVariant vURL(bstrURL);
	m_pEvents2->Fire_NavigateComplete2(m_pOwner, &vURL);

		// Fire the new NavigateForward state
	VARIANT_BOOL bEnableForward = VARIANT_FALSE;
	if ( m_pOwner->m_pIWebShell->CanForward() == NS_OK )
	{
		bEnableForward = VARIANT_TRUE;
	}
	
	m_pEvents2->Fire_CommandStateChange(CSC_NAVIGATEFORWARD, bEnableForward);

	// Fire the new NavigateBack state
	VARIANT_BOOL bEnableBack = VARIANT_FALSE;
	if ( m_pOwner->m_pIWebShell->CanBack() == NS_OK )
	{
		bEnableBack = VARIANT_TRUE;
	}
	
	m_pEvents2->Fire_CommandStateChange(CSC_NAVIGATEBACK, bEnableBack);

	m_pOwner->m_bBusy = FALSE;
	SysFreeString(bstrURL);

	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::NewWebShell(PRUint32 aChromeMask, PRBool aVisible, nsIWebShell *&aNewWebShell)
{
	NG_TRACE_METHOD(CWebShellContainer::NewWebShell);
	nsresult rv = NS_ERROR_OUT_OF_MEMORY;
	return rv;
}


NS_IMETHODIMP
CWebShellContainer::FindWebShellWithName(const PRUnichar* aName, nsIWebShell*& aResult)
{
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::FindWebShellWithName(\"%s\", ...)\n"), W2T(aName));

	nsresult rv = NS_OK; 

	// Zero result (in case we fail). 
	aResult = nsnull;  

	if (m_pOwner->m_pIWebShell != NULL)
	{ 
		rv = m_pOwner->m_pIWebShell->FindChildWithName(aName, aResult); 
	} 

	return rv; 
}


NS_IMETHODIMP
CWebShellContainer::FocusAvailable(nsIWebShell* aFocusedWebShell, PRBool& aFocusTaken)
{
	NG_TRACE_METHOD(CWebShellContainer::FocusAvailable);
	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::ContentShellAdded(nsIWebShell* aWebShell, nsIContent* frameNode)
{
	NG_TRACE_METHOD(CWebShellContainer::ContentShellAdded);
	nsresult rv = NS_OK;
	return rv;
}


NS_IMETHODIMP
CWebShellContainer::CreatePopup(nsIDOMElement* aElement, nsIDOMElement* aPopupContent, 
                         PRInt32 aXPos, PRInt32 aYPos, 
                         const nsString& aPopupType, const nsString& anAnchorAlignment,
                         const nsString& aPopupAlignment,
                         nsIDOMWindow* aWindow, nsIDOMWindow** outPopup)
{
	NG_TRACE_METHOD(CWebShellContainer::CreatePopup);
	HMENU hMenu = ::CreatePopupMenu();
    *outPopup = NULL;
	InsertMenu(hMenu, 0, MF_BYPOSITION, 1, _T("TODO"));
	TrackPopupMenu(hMenu, TPM_LEFTALIGN, aXPos, aYPos, NULL, NULL, NULL);
	return NS_OK;
}

///////////////////////////////////////////////////////////////////////////////
// nsIStreamObserver implementation
#ifdef NECKO
NS_IMETHODIMP
CWebShellContainer::OnStartRequest(nsIChannel* aChannel, nsISupports* aContext)
{
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::OnStartRequest(...)\n"));
	
	return NS_OK;
}

NS_IMETHODIMP
CWebShellContainer::OnStopRequest(nsIChannel* aChannel, nsISupports* aContext, nsresult aStatus, const PRUnichar* aMsg)
{
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::OnStopRequest(..., %d, \"%s\")\n"), (int) aStatus, W2T((PRUnichar *) aMsg));

	// Fire a DownloadComplete event
	m_pEvents1->Fire_DownloadComplete();
	m_pEvents2->Fire_DownloadComplete();

	return NS_OK;
}

///////////////////////////////////////////////////////////////////////////////
// nsIDocumentLoaderObserver implementation 



NS_IMETHODIMP
CWebShellContainer::OnStartDocumentLoad(nsIDocumentLoader* loader, nsIURI* aURL, const char* aCommand)
{ 
	return NS_OK; 
} 

// we need this to fire the document complete 
NS_IMETHODIMP
CWebShellContainer::OnEndDocumentLoad(nsIDocumentLoader* loader, nsIChannel *aChannel, nsresult aStatus, nsIDocumentLoaderObserver * aObserver)
{
	char* aString = nsnull;    
    nsIURI* uri = nsnull;

    aChannel->GetURI(&uri);
    if (uri) {
      uri->GetSpec(&aString);
    }
	if (aString == NULL)
	{
		return NS_ERROR_NULL_POINTER;
	}

	USES_CONVERSION; 
	BSTR bstrURL = SysAllocString(A2OLE((CHAR *) aString)); 
		
	delete [] aString; // clean up. 

	// Fire a DocumentComplete event
	CComVariant vURL(bstrURL);
	m_pEvents2->Fire_DocumentComplete(m_pOwner, &vURL);
	SysFreeString(bstrURL);

	return NS_OK; 
} 

NS_IMETHODIMP
CWebShellContainer::OnStartURLLoad(nsIDocumentLoader* loader, nsIChannel* aChannel, nsIContentViewer* aViewer)
{ 
	return NS_OK; 
} 

NS_IMETHODIMP
CWebShellContainer::OnProgressURLLoad(nsIDocumentLoader* loader, nsIChannel* aChannel, PRUint32 aProgress, PRUint32 aProgressMax)
{ 
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::OnProgress(..., \"%d\", \"%d\")\n"), (int) aProgress, (int) aProgressMax);

	return NS_OK;
} 

// we don't care about these. 
NS_IMETHODIMP
CWebShellContainer::OnStatusURLLoad(nsIDocumentLoader* loader, nsIChannel* aChannel, nsString& aMsg)
{ 
	return NS_OK; 
} 


NS_IMETHODIMP
CWebShellContainer::OnEndURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsresult aStatus)
{
	return NS_OK; 
} 


NS_IMETHODIMP 
CWebShellContainer::HandleUnknownContentType(nsIDocumentLoader* loader, nsIChannel *aChannel, const char *aContentType, const char *aCommand ) 
{ 
	return NS_OK; 
} 

#else // !NECKO

NS_IMETHODIMP
CWebShellContainer::OnStartRequest(nsIURI* aURL, const char *aContentType)
{
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::OnStartRequest(..., \"%s\")\n"), A2CT(aContentType));
	
	return NS_OK;
}

NS_IMETHODIMP
CWebShellContainer::OnProgress(nsIURI* aURL, PRUint32 aProgress, PRUint32 aProgressMax)
{
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::OnProgress(..., \"%d\", \"%d\")\n"), (int) aProgress, (int) aProgressMax);

	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::OnStatus(nsIURI* aURL, const PRUnichar* aMsg)
{
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::OnStatus(..., \"%s\")\n"), W2T((PRUnichar *) aMsg));

	BSTR bstrText = SysAllocString(W2OLE((PRUnichar *) aMsg));
	m_pEvents1->Fire_StatusTextChange(bstrText);
	m_pEvents2->Fire_StatusTextChange(bstrText);
	SysFreeString(bstrText);

	return NS_OK;
}


NS_IMETHODIMP
CWebShellContainer::OnStopRequest(nsIURI* aURL, nsresult aStatus, const PRUnichar* aMsg)
{
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::OnStopRequest(..., %d, \"%s\")\n"), (int) aStatus, W2T((PRUnichar *) aMsg));

	// Fire a DownloadComplete event
	m_pEvents1->Fire_DownloadComplete();
	m_pEvents2->Fire_DownloadComplete();

	return NS_OK;
}

///////////////////////////////////////////////////////////////////////////////
// nsIDocumentLoaderObserver implementation 



NS_IMETHODIMP
CWebShellContainer::OnStartDocumentLoad(nsIDocumentLoader* loader, nsIURI* aURL, const char* aCommand)
{ 
	return NS_OK; 
} 

// we need this to fire the document complete 
NS_IMETHODIMP
CWebShellContainer::OnEndDocumentLoad(nsIDocumentLoader* loader, nsIURI *aUrl, nsresult aStatus, nsIDocumentLoaderObserver * aObserver)
{
	PRUnichar* wString = nsnull;    

	aUrl->ToString(&wString);
	if (wString == NULL)
	{
		return NS_ERROR_NULL_POINTER;
	}

	USES_CONVERSION; 
	delete [] wString; // clean up. 

	BSTR bstrURL = SysAllocString(W2OLE((WCHAR *) wString)); 
		
	// Fire a DocumentComplete event
	CComVariant vURL(bstrURL);
	m_pEvents2->Fire_DocumentComplete(m_pOwner, &vURL);
	SysFreeString(bstrURL);

	return NS_OK; 
} 

NS_IMETHODIMP
CWebShellContainer::OnStartURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, const char* aContentType, nsIContentViewer* aViewer)
{ 
	return NS_OK; 
} 

NS_IMETHODIMP
CWebShellContainer::OnProgressURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, PRUint32 aProgress, PRUint32 aProgressMax)
{ 
	USES_CONVERSION;
	NG_TRACE(_T("CWebShellContainer::OnProgress(..., \"%d\", \"%d\")\n"), (int) aProgress, (int) aProgressMax);

	return NS_OK;
} 

// we don't care about these. 
NS_IMETHODIMP
CWebShellContainer::OnStatusURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, nsString& aMsg)
{ 
	return NS_OK; 
} 


NS_IMETHODIMP
CWebShellContainer::OnEndURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, nsresult aStatus)
{
	return NS_OK; 
} 


NS_IMETHODIMP 
CWebShellContainer::HandleUnknownContentType(nsIDocumentLoader* loader, nsIURI *aURL, const char *aContentType, const char *aCommand ) 
{ 
	return NS_OK; 
} 
#endif // ! NECKO