gecko-dev/webshell/embed/ngprefs/win/factory.cpp
scullin%netscape.com d875fa60bc Added.
1998-09-22 00:08:27 +00:00

203 lines
4.1 KiB
C++

/* -*- 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 "factory.h"
#include "globals.h"
#include "ngprefs.h"
/**
* CNGLayoutPrefs
*/
class CNGLayoutPrefs: public INGLayoutPrefs {
private:
int m_ObjRefCount;
public:
CNGLayoutPrefs();
~CNGLayoutPrefs();
//IUnknown methods
STDMETHOD (QueryInterface)(REFIID, LPVOID*);
STDMETHOD_(DWORD, AddRef)();
STDMETHOD_(DWORD, Release)();
//INGLayoutPrefs
STDMETHOD (Show)(HWND hwnd);
};
CNGLayoutPrefs::CNGLayoutPrefs()
{
m_ObjRefCount = 1;
g_DllRefCount++;
}
CNGLayoutPrefs::~CNGLayoutPrefs()
{
g_DllRefCount--;
}
STDMETHODIMP CNGLayoutPrefs::QueryInterface(REFIID riid, LPVOID *ppReturn)
{
*ppReturn = NULL;
//IUnknown
if(IsEqualIID(riid, IID_IUnknown))
{
*ppReturn = this;
}
//INGLayoutPrefs
else if(IsEqualIID(riid, IID_INGLayoutPrefs))
{
*ppReturn = (INGLayoutPrefs*)this;
}
if(*ppReturn)
{
(*(LPUNKNOWN*)ppReturn)->AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
STDMETHODIMP_(DWORD) CNGLayoutPrefs::AddRef()
{
return ++m_ObjRefCount;
}
STDMETHODIMP_(DWORD) CNGLayoutPrefs::Release()
{
if(--m_ObjRefCount == 0)
{
delete this;
return 0;
}
return m_ObjRefCount;
}
STDMETHODIMP CNGLayoutPrefs::Show(HWND hwnd)
{
DisplayPreferences(hwnd);
return S_OK;
}
/**
* CNGLayoutPrefs
*/
CClassFactory::CClassFactory(CLSID clsid)
{
m_clsidObject = clsid;
m_ObjRefCount = 1;
g_DllRefCount++;
}
CClassFactory::~CClassFactory()
{
g_DllRefCount--;
}
STDMETHODIMP CClassFactory::QueryInterface(REFIID riid, LPVOID *ppReturn)
{
*ppReturn = NULL;
if(IsEqualIID(riid, IID_IUnknown))
{
*ppReturn = this;
}
else if(IsEqualIID(riid, IID_IClassFactory))
{
*ppReturn = (IClassFactory*)this;
}
if(*ppReturn)
{
(*(LPUNKNOWN*)ppReturn)->AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
STDMETHODIMP_(DWORD) CClassFactory::AddRef()
{
return ++m_ObjRefCount;
}
STDMETHODIMP_(DWORD) CClassFactory::Release()
{
if(--m_ObjRefCount == 0)
{
delete this;
return 0;
}
return m_ObjRefCount;
}
STDMETHODIMP CClassFactory::CreateInstance( LPUNKNOWN pUnknown,
REFIID riid,
LPVOID *ppObject)
{
HRESULT hResult = E_FAIL;
LPVOID pTemp = NULL;
*ppObject = NULL;
if(pUnknown != NULL)
return CLASS_E_NOAGGREGATION;
//create the proper object
if(IsEqualCLSID(m_clsidObject, CLSID_NGLayoutPrefs))
{
CNGLayoutPrefs *pPrefs = new CNGLayoutPrefs();
if(NULL == pPrefs)
return E_OUTOFMEMORY;
pTemp = pPrefs;
}
if(pTemp)
{
//get the QueryInterface return for our return value
hResult = ((LPUNKNOWN)pTemp)->QueryInterface(riid, ppObject);
//call Release to decement the ref count
((LPUNKNOWN)pTemp)->Release();
}
return hResult;
}
/**************************************************************************
CClassFactory::LockServer
**************************************************************************/
STDMETHODIMP CClassFactory::LockServer(BOOL)
{
return E_NOTIMPL;
}