wine/dlls/atl/atl_ax.c

/*
 * Active Template Library ActiveX functions (atl.dll)
 *
 * Copyright 2006 Andrey Turkin
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <stdarg.h>
#include <stdio.h>

#define COBJMACROS

#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winerror.h"
#include "winuser.h"
#include "wine/debug.h"
#include "objbase.h"
#include "objidl.h"
#include "ole2.h"
#include "exdisp.h"
#include "atlbase.h"
#include "atliface.h"
#include "atlwin.h"

#include "wine/unicode.h"

WINE_DEFAULT_DEBUG_CHANNEL(atl);

/**********************************************************************
 * AtlAxWin class window procedure
 */
LRESULT static CALLBACK AtlAxWin_wndproc( HWND hWnd, UINT wMsg, WPARAM wParam, LPARAM lParam )
{
    if ( wMsg == WM_CREATE )
    {
            DWORD len = GetWindowTextLengthW( hWnd ) + 1;
            WCHAR *ptr = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
            if (!ptr)
                return 1;
            GetWindowTextW( hWnd, ptr, len );
            AtlAxCreateControlEx( ptr, hWnd, NULL, NULL, NULL, NULL, NULL );
            HeapFree( GetProcessHeap(), 0, ptr );
            return 0;
    }
    return DefWindowProcW( hWnd, wMsg, wParam, lParam );
}

/***********************************************************************
 *           AtlAxWinInit          [ATL.@]
 * Initializes the control-hosting code: registering the AtlAxWin, 
 * AtlAxWin7 and AtlAxWinLic7 window classes and some messages.
 *
 * RETURNS
 *  TRUE or FALSE
 */
 
BOOL WINAPI AtlAxWinInit(void)
{
    WNDCLASSEXW wcex;
    const WCHAR AtlAxWin[] = {'A','t','l','A','x','W','i','n',0};

    FIXME("semi-stub\n");

    if ( FAILED( OleInitialize(NULL) ) )
        return FALSE;

    wcex.cbSize        = sizeof(wcex);
    wcex.style         = 0;
    wcex.cbClsExtra    = 0;
    wcex.cbWndExtra    = 0;
    wcex.hInstance     = GetModuleHandleW( NULL );
    wcex.hIcon         = NULL;
    wcex.hCursor       = NULL;
    wcex.hbrBackground = NULL;
    wcex.lpszMenuName  = NULL;
    wcex.hIconSm       = 0;

    wcex.lpfnWndProc   = AtlAxWin_wndproc;
    wcex.lpszClassName = AtlAxWin;
    if ( !RegisterClassExW( &wcex ) )
        return FALSE;

    return TRUE;
}

/***********************************************************************
 *           AtlAxCreateControl           [ATL.@]
 */
HRESULT WINAPI AtlAxCreateControl(LPCOLESTR lpszName, HWND hWnd,
        IStream *pStream, IUnknown **ppUnkContainer)
{
    return AtlAxCreateControlEx( lpszName, hWnd, pStream, ppUnkContainer,
            NULL, NULL, NULL );
}

/***********************************************************************
 *           AtlAxCreateControlEx            [ATL.@]
 *
 * REMARKS
 *   See http://www.codeproject.com/com/cwebpage.asp for some background
 *
 */
HRESULT WINAPI AtlAxCreateControlEx(LPCOLESTR lpszName, HWND hWnd,
        IStream *pStream, IUnknown **ppUnkContainer, IUnknown **ppUnkControl,
        REFIID iidSink, IUnknown *punkSink)
{
    CLSID controlId;
    HRESULT hRes;
    IOleObject *pControl;
    IUnknown *pUnkControl;
    IPersistStreamInit *pPSInit;
    IUnknown *pContainer;
    enum {IsGUID=0,IsHTML=1,IsURL=2} content;

    TRACE("(%s %p %p %p %p %p %p)\n", debugstr_w(lpszName), hWnd, pStream, 
            ppUnkContainer, ppUnkControl, iidSink, punkSink);

    hRes = CLSIDFromString( (LPOLESTR) lpszName, &controlId );
    if ( FAILED(hRes) )
        hRes = CLSIDFromProgID( lpszName, &controlId );
    if ( SUCCEEDED( hRes ) )
        content = IsGUID;
    else {
        /* FIXME - check for MSHTML: prefix! */
        content = IsURL;
        memcpy( &controlId, &CLSID_WebBrowser, sizeof(controlId) );
    }

    hRes = CoCreateInstance( &controlId, 0, CLSCTX_ALL, &IID_IOleObject, 
            (void**) &pControl );
    if ( FAILED( hRes ) )
    {
        WARN( "cannot create ActiveX control %s instance - error 0x%08x\n",
                debugstr_guid( &controlId ), hRes );
        return hRes;
    }

    hRes = IOleObject_QueryInterface( pControl, &IID_IPersistStreamInit, (void**) &pPSInit );
    if ( SUCCEEDED( hRes ) )
    {
        if (!pStream)
            IPersistStreamInit_InitNew( pPSInit );
        else
            IPersistStreamInit_Load( pPSInit, pStream );
        IPersistStreamInit_Release( pPSInit );
    } else
        WARN("cannot get IID_IPersistStreamInit out of control\n");

    IOleObject_QueryInterface( pControl, &IID_IUnknown, (void**) &pUnkControl );
    IOleObject_Release( pControl );
     

    hRes = AtlAxAttachControl( pUnkControl, hWnd, &pContainer );
    if ( FAILED( hRes ) )
        WARN("cannot attach control to window\n");

    if ( content == IsURL )
    {
        IWebBrowser2 *browser;

        hRes = IOleObject_QueryInterface( pControl, &IID_IWebBrowser2, (void**) &browser );
        if ( !browser )
            WARN( "Cannot query IWebBrowser2 interface: %08x\n", hRes );
        else {
            VARIANT url;
            
            IWebBrowser2_put_Visible( browser, VARIANT_TRUE ); /* it seems that native does this on URL (but do not on MSHTML:! why? */

            V_VT(&url) = VT_BSTR;
            V_BSTR(&url) = SysAllocString( lpszName );

            hRes = IWebBrowser2_Navigate2( browser, &url, NULL, NULL, NULL, NULL );
            if ( FAILED( hRes ) )
                WARN( "IWebBrowser2::Navigate2 failed: %08x\n", hRes );
            SysFreeString( V_BSTR(&url) );

            IWebBrowser2_Release( browser );
        }
    }

    if (ppUnkContainer)
    {
        *ppUnkContainer = pContainer;
        if ( pContainer )
            IUnknown_AddRef( pContainer );
    }
    if (ppUnkControl)
    {
        *ppUnkControl = pUnkControl;
        if ( pUnkControl )
            IUnknown_AddRef( pUnkControl );
    }

    IUnknown_Release( pUnkControl );
    if ( pContainer )
        IUnknown_Release( pContainer );

    return S_OK;
}

/***********************************************************************
 *           AtlAxAttachControl           [ATL.@]
 */
HRESULT WINAPI AtlAxAttachControl(IUnknown* pControl, HWND hWnd, IUnknown** ppUnkContainer)
{
    FIXME( "(%p %p %p) - stub\n", pControl, hWnd, ppUnkContainer );
    return E_NOTIMPL;
}