filedlgbrowser.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

/*
 *  Implementation of IShellBrowser for the File Open common dialog
 *
 * Copyright 1999 Francois Boisvert
 * Copyright 1999, 2000 Juergen Schmied
 *
 * 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>
#include <string.h>

#define COBJMACROS
#define NONAMELESSUNION
#define NONAMELESSSTRUCT

#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "wingdi.h"
#include "winuser.h"
#include "winreg.h"

#define NO_SHLWAPI_STREAM
#include "shlwapi.h"
#include "filedlgbrowser.h"
#include "cdlg.h"
#include "shlguid.h"
#include "servprov.h"
#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(commdlg);

typedef struct
{

    const IShellBrowserVtbl *lpVtbl;
    const ICommDlgBrowserVtbl *lpVtblCommDlgBrowser;
    const IServiceProviderVtbl *lpVtblServiceProvider;
    LONG ref;                                   /* Reference counter */
    HWND hwndOwner;                             /* Owner dialog of the interface */

} IShellBrowserImpl;

static inline IShellBrowserImpl *impl_from_ICommDlgBrowser( ICommDlgBrowser *iface )
{
    return (IShellBrowserImpl *)((char*)iface - FIELD_OFFSET(IShellBrowserImpl, lpVtblCommDlgBrowser));
}

static inline IShellBrowserImpl *impl_from_IServiceProvider( IServiceProvider *iface )
{
    return (IShellBrowserImpl *)((char*)iface - FIELD_OFFSET(IShellBrowserImpl, lpVtblServiceProvider));
}

/**************************************************************************
*   vtable
*/
static const IShellBrowserVtbl IShellBrowserImpl_Vtbl;
static const ICommDlgBrowserVtbl IShellBrowserImpl_ICommDlgBrowser_Vtbl;
static const IServiceProviderVtbl IShellBrowserImpl_IServiceProvider_Vtbl;

/**************************************************************************
*   Local Prototypes
*/

static HRESULT IShellBrowserImpl_ICommDlgBrowser_OnSelChange(ICommDlgBrowser *iface, const IShellView *ppshv);

/*
 *   Helper functions
 */

#define add_flag(a) if (flags & a) {strcat(str, #a );strcat(str," ");}
static void COMDLG32_DumpSBSPFlags(UINT uflags)
{
    if (TRACE_ON(commdlg))
    {
	unsigned int   i;
	static const struct {
	    DWORD       mask;
	    const char  *name;
	} flags[] = {
#define FE(x) { x, #x}
            /* SBSP_DEFBROWSER == 0 */
            FE(SBSP_SAMEBROWSER),
            FE(SBSP_NEWBROWSER),

            /* SBSP_DEFMODE == 0 */
            FE(SBSP_OPENMODE),
            FE(SBSP_EXPLOREMODE),
            FE(SBSP_HELPMODE),
            FE(SBSP_NOTRANSFERHIST),

            /* SBSP_ABSOLUTE == 0 */
            FE(SBSP_RELATIVE),
            FE(SBSP_PARENT),
            FE(SBSP_NAVIGATEBACK),
            FE(SBSP_NAVIGATEFORWARD),
            FE(SBSP_ALLOW_AUTONAVIGATE),

            FE(SBSP_NOAUTOSELECT),
            FE(SBSP_WRITENOHISTORY),

            FE(SBSP_REDIRECT),
            FE(SBSP_INITIATEDBYHLINKFRAME),
        };
#undef FE
        DPRINTF("SBSP Flags: %08x =", uflags);
	for (i = 0; i < (sizeof(flags) / sizeof(flags[0])); i++)
	    if (flags[i].mask & uflags)
		DPRINTF("%s ", flags[i].name);
	DPRINTF("\n");
    }
}

static void COMDLG32_UpdateCurrentDir(const FileOpenDlgInfos *fodInfos)
{
    LPSHELLFOLDER psfDesktop;
    STRRET strret;
    HRESULT res;

    res = SHGetDesktopFolder(&psfDesktop);
    if (FAILED(res))
        return;
    
    res = IShellFolder_GetDisplayNameOf(psfDesktop, fodInfos->ShellInfos.pidlAbsCurrent,
                                        SHGDN_FORPARSING, &strret);
    if (SUCCEEDED(res)) {
        WCHAR wszCurrentDir[MAX_PATH];
        
        res = StrRetToBufW(&strret, fodInfos->ShellInfos.pidlAbsCurrent, wszCurrentDir, MAX_PATH);
        if (SUCCEEDED(res))
            SetCurrentDirectoryW(wszCurrentDir);
    }
    
    IShellFolder_Release(psfDesktop);
}

/* copied from shell32 to avoid linking to it */
static HRESULT COMDLG32_StrRetToStrNW (LPVOID dest, DWORD len, LPSTRRET src, LPCITEMIDLIST pidl)
{
	TRACE("dest=%p len=0x%x strret=%p pidl=%p stub\n",dest,len,src,pidl);

	switch (src->uType)
	{
	  case STRRET_WSTR:
	    lstrcpynW((LPWSTR)dest, src->u.pOleStr, len);
	    COMDLG32_SHFree(src->u.pOleStr);
	    break;

	  case STRRET_CSTR:
            if (len && !MultiByteToWideChar( CP_ACP, 0, src->u.cStr, -1, (LPWSTR)dest, len ))
                ((LPWSTR)dest)[len-1] = 0;
	    break;

	  case STRRET_OFFSET:
	    if (pidl)
	    {
                if (len && !MultiByteToWideChar( CP_ACP, 0, ((LPCSTR)&pidl->mkid)+src->u.uOffset,
                                                 -1, (LPWSTR)dest, len ))
                    ((LPWSTR)dest)[len-1] = 0;
	    }
	    break;

	  default:
	    FIXME("unknown type!\n");
	    if (len)
	    { *(LPWSTR)dest = '\0';
	    }
	    return(FALSE);
	}
	return S_OK;
}

/*
 *	IShellBrowser
 */

/**************************************************************************
*  IShellBrowserImpl_Construct
*/
IShellBrowser * IShellBrowserImpl_Construct(HWND hwndOwner)
{
    IShellBrowserImpl *sb;
    FileOpenDlgInfos *fodInfos = (FileOpenDlgInfos *) GetPropA(hwndOwner,FileOpenDlgInfosStr);

    sb=(IShellBrowserImpl*)COMDLG32_SHAlloc(sizeof(IShellBrowserImpl));

    /* Initialisation of the member variables */
    sb->ref=1;
    sb->hwndOwner = hwndOwner;

    /* Initialisation of the vTables */
    sb->lpVtbl = &IShellBrowserImpl_Vtbl;
    sb->lpVtblCommDlgBrowser = &IShellBrowserImpl_ICommDlgBrowser_Vtbl;
    sb->lpVtblServiceProvider = &IShellBrowserImpl_IServiceProvider_Vtbl;
    SHGetSpecialFolderLocation(hwndOwner, CSIDL_DESKTOP,
                               &fodInfos->ShellInfos.pidlAbsCurrent);

    TRACE("%p\n", sb);

    return (IShellBrowser *) sb;
}

/***************************************************************************
*  IShellBrowserImpl_QueryInterface
*/
static HRESULT WINAPI IShellBrowserImpl_QueryInterface(IShellBrowser *iface,
                                            REFIID riid,
                                            LPVOID *ppvObj)
{
    IShellBrowserImpl *This = (IShellBrowserImpl *)iface;

    TRACE("(%p)\n\t%s\n", This, debugstr_guid(riid));

    *ppvObj = NULL;

    if(IsEqualIID(riid, &IID_IUnknown))          /*IUnknown*/
    { *ppvObj = This;
    }
    else if(IsEqualIID(riid, &IID_IOleWindow))  /*IOleWindow*/
    { *ppvObj = (IOleWindow*)This;
    }

    else if(IsEqualIID(riid, &IID_IShellBrowser))  /*IShellBrowser*/
    { *ppvObj = (IShellBrowser*)This;
    }

    else if(IsEqualIID(riid, &IID_ICommDlgBrowser))  /*ICommDlgBrowser*/
    { *ppvObj = (ICommDlgBrowser*) &(This->lpVtblCommDlgBrowser);
    }

    else if(IsEqualIID(riid, &IID_IServiceProvider))  /* IServiceProvider */
    { *ppvObj = (ICommDlgBrowser*) &(This->lpVtblServiceProvider);
    }

    if(*ppvObj)
    { IUnknown_AddRef( (IShellBrowser*) *ppvObj);
      return S_OK;
    }
    FIXME("Unknown interface requested\n");
    return E_NOINTERFACE;
}

/**************************************************************************
*  IShellBrowser::AddRef
*/
static ULONG WINAPI IShellBrowserImpl_AddRef(IShellBrowser * iface)
{
    IShellBrowserImpl *This = (IShellBrowserImpl *)iface;
    ULONG ref = InterlockedIncrement(&This->ref);

    TRACE("(%p,%u)\n", This, ref - 1);

    return ref;
}

/**************************************************************************
*  IShellBrowserImpl_Release
*/
static ULONG WINAPI IShellBrowserImpl_Release(IShellBrowser * iface)
{
    IShellBrowserImpl *This = (IShellBrowserImpl *)iface;
    ULONG ref = InterlockedDecrement(&This->ref);

    TRACE("(%p,%u)\n", This, ref + 1);

    if (!ref)
    {
      COMDLG32_SHFree(This);
      TRACE("-- destroyed\n");
      return 0;
    }
    return ref;
}

/*
 * IOleWindow
 */

/**************************************************************************
*  IShellBrowserImpl_GetWindow  (IOleWindow)
*
*  Inherited from IOleWindow::GetWindow
*
*  See Windows documentation for more details
*
*  Note : We will never be window less in the File Open dialog
*
*/
static HRESULT WINAPI IShellBrowserImpl_GetWindow(IShellBrowser * iface,
                                           HWND * phwnd)
{
    IShellBrowserImpl *This = (IShellBrowserImpl *)iface;

    TRACE("(%p)\n", This);

    if(!This->hwndOwner)
        return E_FAIL;

    *phwnd = This->hwndOwner;

    return (*phwnd) ? S_OK : E_UNEXPECTED;

}

/**************************************************************************
*  IShellBrowserImpl_ContextSensitiveHelp
*/
static HRESULT WINAPI IShellBrowserImpl_ContextSensitiveHelp(IShellBrowser * iface,
                                                      BOOL fEnterMode)
{
    IShellBrowserImpl *This = (IShellBrowserImpl *)iface;

    TRACE("(%p)\n", This);

    /* Feature not implemented */
    return E_NOTIMPL;
}

/*
 * IShellBrowser
 */

/**************************************************************************
*  IShellBrowserImpl_BrowseObject
*
*  See Windows documentation on IShellBrowser::BrowseObject for more details