mirror of
https://github.com/reactos/reactos.git
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575 lines
19 KiB
C++
575 lines
19 KiB
C++
/*
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* Shell Folder stuff
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*
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* Copyright 1997 Marcus Meissner
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* Copyright 1998, 1999, 2002 Juergen Schmied
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*
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* IShellFolder2 and related interfaces
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "precomp.h"
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WINE_DEFAULT_DEBUG_CHANNEL(shell);
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static const WCHAR wszDotShellClassInfo[] = {
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'.','S','h','e','l','l','C','l','a','s','s','I','n','f','o',0};
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/***************************************************************************
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* SHELL32_GetCustomFolderAttribute (internal function)
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*
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* Gets a value from the folder's desktop.ini file, if one exists.
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*
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* PARAMETERS
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* pidl [I] Folder containing the desktop.ini file.
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* pwszHeading [I] Heading in .ini file.
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* pwszAttribute [I] Attribute in .ini file.
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* pwszValue [O] Buffer to store value into.
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* cchValue [I] Size in characters including NULL of buffer pointed to
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* by pwszValue.
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*
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* RETURNS
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* TRUE if returned non-NULL value.
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* FALSE otherwise.
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*/
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static BOOL __inline SHELL32_GetCustomFolderAttributeFromPath(
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LPWSTR pwszFolderPath, LPCWSTR pwszHeading, LPCWSTR pwszAttribute,
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LPWSTR pwszValue, DWORD cchValue)
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{
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static const WCHAR wszDesktopIni[] =
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{'d','e','s','k','t','o','p','.','i','n','i',0};
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static const WCHAR wszDefault[] = {0};
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PathAddBackslashW(pwszFolderPath);
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PathAppendW(pwszFolderPath, wszDesktopIni);
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return GetPrivateProfileStringW(pwszHeading, pwszAttribute, wszDefault,
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pwszValue, cchValue, pwszFolderPath);
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}
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BOOL SHELL32_GetCustomFolderAttribute(
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LPCITEMIDLIST pidl, LPCWSTR pwszHeading, LPCWSTR pwszAttribute,
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LPWSTR pwszValue, DWORD cchValue)
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{
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DWORD dwAttrib = FILE_ATTRIBUTE_SYSTEM;
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WCHAR wszFolderPath[MAX_PATH];
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/* Hack around not having system attribute on non-Windows file systems */
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if (0)
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dwAttrib = _ILGetFileAttributes(pidl, NULL, 0);
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if (dwAttrib & FILE_ATTRIBUTE_SYSTEM)
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{
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if (!SHGetPathFromIDListW(pidl, wszFolderPath))
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return FALSE;
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return SHELL32_GetCustomFolderAttributeFromPath(wszFolderPath, pwszHeading,
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pwszAttribute, pwszValue, cchValue);
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}
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return FALSE;
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}
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/***************************************************************************
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* GetNextElement (internal function)
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*
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* Gets a part of a string till the first backslash.
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*
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* PARAMETERS
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* pszNext [IN] string to get the element from
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* pszOut [IN] pointer to buffer which receives string
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* dwOut [IN] length of pszOut
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*
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* RETURNS
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* LPSTR pointer to first, not yet parsed char
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*/
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LPCWSTR GetNextElementW (LPCWSTR pszNext, LPWSTR pszOut, DWORD dwOut)
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{
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LPCWSTR pszTail = pszNext;
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DWORD dwCopy;
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TRACE ("(%s %p 0x%08x)\n", debugstr_w (pszNext), pszOut, dwOut);
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*pszOut = 0x0000;
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if (!pszNext || !*pszNext)
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return NULL;
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while (*pszTail && (*pszTail != (WCHAR) '\\'))
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pszTail++;
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dwCopy = pszTail - pszNext + 1;
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lstrcpynW (pszOut, pszNext, (dwOut < dwCopy) ? dwOut : dwCopy);
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if (*pszTail)
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pszTail++;
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else
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pszTail = NULL;
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TRACE ("--(%s %s 0x%08x %p)\n", debugstr_w (pszNext), debugstr_w (pszOut), dwOut, pszTail);
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return pszTail;
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}
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HRESULT SHELL32_ParseNextElement (IShellFolder2 * psf, HWND hwndOwner, LPBC pbc,
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LPITEMIDLIST * pidlInOut, LPOLESTR szNext, DWORD * pEaten, DWORD * pdwAttributes)
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{
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HRESULT hr = E_INVALIDARG;
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LPITEMIDLIST pidlOut = NULL,
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pidlTemp = NULL;
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IShellFolder *psfChild;
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TRACE ("(%p, %p, %p, %s)\n", psf, pbc, pidlInOut ? *pidlInOut : NULL, debugstr_w (szNext));
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/* get the shellfolder for the child pidl and let it analyse further */
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hr = psf->BindToObject(*pidlInOut, pbc, IID_PPV_ARG(IShellFolder, &psfChild));
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if (SUCCEEDED(hr)) {
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hr = psfChild->ParseDisplayName(hwndOwner, pbc, szNext, pEaten, &pidlOut, pdwAttributes);
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psfChild->Release();
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if (SUCCEEDED(hr)) {
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pidlTemp = ILCombine (*pidlInOut, pidlOut);
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if (!pidlTemp)
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hr = E_OUTOFMEMORY;
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}
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if (pidlOut)
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ILFree (pidlOut);
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}
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ILFree (*pidlInOut);
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*pidlInOut = pidlTemp;
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TRACE ("-- pidl=%p ret=0x%08x\n", pidlInOut ? *pidlInOut : NULL, hr);
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return hr;
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}
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/***********************************************************************
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* SHELL32_CoCreateInitSF
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*
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* Creates a shell folder and initializes it with a pidl and a root folder
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* via IPersistFolder3 or IPersistFolder.
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*
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* NOTES
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* pathRoot can be NULL for Folders being a drive.
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* In this case the absolute path is built from pidlChild (eg. C:)
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*/
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static HRESULT SHELL32_CoCreateInitSF (LPCITEMIDLIST pidlRoot, LPCWSTR pathRoot,
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LPCITEMIDLIST pidlChild, REFCLSID clsid, LPVOID * ppvOut)
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{
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HRESULT hr;
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IShellFolder* pShellFolder = NULL;
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TRACE ("%p %s %p\n", pidlRoot, debugstr_w(pathRoot), pidlChild);
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hr = SHCoCreateInstance(NULL, &clsid, NULL, IID_PPV_ARG(IShellFolder, &pShellFolder));
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if (SUCCEEDED (hr))
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{
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LPITEMIDLIST pidlAbsolute = ILCombine (pidlRoot, pidlChild);
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IPersistFolder *pPF;
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IPersistFolder3 *ppf;
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if (_ILIsFolder(pidlChild) &&
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SUCCEEDED(pShellFolder->QueryInterface(IID_PPV_ARG(IPersistFolder3, &ppf))))
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{
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PERSIST_FOLDER_TARGET_INFO ppfti;
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ZeroMemory (&ppfti, sizeof (ppfti));
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/* fill the PERSIST_FOLDER_TARGET_INFO */
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ppfti.dwAttributes = -1;
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ppfti.csidl = -1;
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/* build path */
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if (pathRoot)
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{
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lstrcpynW (ppfti.szTargetParsingName, pathRoot, MAX_PATH - 1);
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PathAddBackslashW(ppfti.szTargetParsingName); /* FIXME: why have drives a backslash here ? */
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}
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if (pidlChild)
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{
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int len = wcslen(ppfti.szTargetParsingName);
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if (!_ILSimpleGetTextW(pidlChild, ppfti.szTargetParsingName + len, MAX_PATH - len))
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hr = E_INVALIDARG;
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}
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ppf->InitializeEx(NULL, pidlAbsolute, &ppfti);
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ppf->Release();
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}
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else if (SUCCEEDED((hr = pShellFolder->QueryInterface(IID_PPV_ARG(IPersistFolder, &pPF)))))
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{
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pPF->Initialize(pidlAbsolute);
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pPF->Release();
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}
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ILFree (pidlAbsolute);
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}
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*ppvOut = pShellFolder;
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TRACE ("-- (%p) ret=0x%08x\n", *ppvOut, hr);
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return hr;
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}
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/***********************************************************************
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* SHELL32_BindToChild [Internal]
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*
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* Common code for IShellFolder_BindToObject.
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*
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* PARAMS
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* pidlRoot [I] The parent shell folder's absolute pidl.
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* pathRoot [I] Absolute dos path of the parent shell folder.
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* pidlComplete [I] PIDL of the child. Relative to pidlRoot.
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* riid [I] GUID of the interface, which ppvOut shall be bound to.
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* ppvOut [O] A reference to the child's interface (riid).
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*
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* NOTES
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* pidlComplete has to contain at least one non empty SHITEMID.
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* This function makes special assumptions on the shell namespace, which
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* means you probably can't use it for your IShellFolder implementation.
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*/
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HRESULT SHELL32_BindToChild (LPCITEMIDLIST pidlRoot,
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LPCWSTR pathRoot, LPCITEMIDLIST pidlComplete, REFIID riid, LPVOID * ppvOut)
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{
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GUID const *clsid;
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IShellFolder *pSF;
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HRESULT hr;
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LPITEMIDLIST pidlChild;
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if (!pidlRoot || !ppvOut || !pidlComplete || !pidlComplete->mkid.cb)
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return E_INVALIDARG;
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*ppvOut = NULL;
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pidlChild = ILCloneFirst (pidlComplete);
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if ((clsid = _ILGetGUIDPointer (pidlChild))) {
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/* virtual folder */
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hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild, *clsid, (LPVOID *)&pSF);
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} else {
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/* file system folder */
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CLSID clsidFolder = CLSID_ShellFSFolder;
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static const WCHAR wszCLSID[] = {'C','L','S','I','D',0};
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WCHAR wszCLSIDValue[CHARS_IN_GUID], wszFolderPath[MAX_PATH], *pwszPathTail = wszFolderPath;
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/* see if folder CLSID should be overridden by desktop.ini file */
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if (pathRoot) {
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lstrcpynW(wszFolderPath, pathRoot, MAX_PATH);
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pwszPathTail = PathAddBackslashW(wszFolderPath);
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}
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_ILSimpleGetTextW(pidlChild,pwszPathTail,MAX_PATH - (int)(pwszPathTail - wszFolderPath));
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if (SHELL32_GetCustomFolderAttributeFromPath (wszFolderPath,
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wszDotShellClassInfo, wszCLSID, wszCLSIDValue, CHARS_IN_GUID))
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CLSIDFromString (wszCLSIDValue, &clsidFolder);
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hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild,
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clsidFolder, (LPVOID *)&pSF);
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}
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ILFree (pidlChild);
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if (SUCCEEDED (hr)) {
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if (_ILIsPidlSimple (pidlComplete)) {
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/* no sub folders */
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hr = pSF->QueryInterface(riid, ppvOut);
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} else {
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/* go deeper */
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hr = pSF->BindToObject(ILGetNext (pidlComplete), NULL, riid, ppvOut);
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}
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pSF->Release();
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}
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TRACE ("-- returning (%p) %08x\n", *ppvOut, hr);
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return hr;
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}
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/***********************************************************************
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* SHELL32_GetDisplayNameOfChild
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*
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* Retrieves the display name of a child object of a shellfolder.
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*
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* For a pidl eg. [subpidl1][subpidl2][subpidl3]:
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* - it binds to the child shellfolder [subpidl1]
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* - asks it for the displayname of [subpidl2][subpidl3]
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*
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* Is possible the pidl is a simple pidl. In this case it asks the
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* subfolder for the displayname of an empty pidl. The subfolder
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* returns the own displayname eg. "::{guid}". This is used for
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* virtual folders with the registry key WantsFORPARSING set.
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*/
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HRESULT SHELL32_GetDisplayNameOfChild (IShellFolder2 * psf,
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LPCITEMIDLIST pidl, DWORD dwFlags, LPWSTR szOut, DWORD dwOutLen)
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{
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LPITEMIDLIST pidlFirst;
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HRESULT hr = E_INVALIDARG;
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TRACE ("(%p)->(pidl=%p 0x%08x %p 0x%08x)\n", psf, pidl, dwFlags, szOut, dwOutLen);
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pdump (pidl);
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pidlFirst = ILCloneFirst(pidl);
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if (pidlFirst)
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{
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IShellFolder *psfChild;
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hr = psf->BindToObject(pidlFirst, NULL, IID_PPV_ARG(IShellFolder, &psfChild));
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if (SUCCEEDED (hr))
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{
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STRRET strTemp;
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LPITEMIDLIST pidlNext = ILGetNext (pidl);
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hr = psfChild->GetDisplayNameOf(pidlNext, dwFlags, &strTemp);
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if (SUCCEEDED (hr))
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{
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if(!StrRetToStrNW (szOut, dwOutLen, &strTemp, pidlNext))
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hr = E_FAIL;
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}
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psfChild->Release();
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}
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ILFree (pidlFirst);
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} else
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hr = E_OUTOFMEMORY;
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TRACE ("-- ret=0x%08x %s\n", hr, debugstr_w(szOut));
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return hr;
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}
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/***********************************************************************
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* SHELL32_GetItemAttributes
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*
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* NOTES
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* Observed values:
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* folder: 0xE0000177 FILESYSTEM | HASSUBFOLDER | FOLDER
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* file: 0x40000177 FILESYSTEM
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* drive: 0xf0000144 FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR
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* mycomputer: 0xb0000154 HASSUBFOLDER | FOLDER | FILESYSANCESTOR
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* (seems to be default for shell extensions if no registry entry exists)
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*
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* win2k:
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* folder: 0xF0400177 FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER
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* file: 0x40400177 FILESYSTEM | CANMONIKER
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* drive 0xF0400154 FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER | CANRENAME (LABEL)
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*
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* According to the MSDN documentation this function should not set flags. It claims only to reset flags when necessary.
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* However it turns out the native shell32.dll _sets_ flags in several cases - so do we.
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*/
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HRESULT SHELL32_GetItemAttributes (IShellFolder * psf, LPCITEMIDLIST pidl, LPDWORD pdwAttributes)
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{
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DWORD dwAttributes;
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BOOL has_guid;
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static const DWORD dwSupportedAttr=
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SFGAO_CANCOPY | /*0x00000001 */
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SFGAO_CANMOVE | /*0x00000002 */
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SFGAO_CANLINK | /*0x00000004 */
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SFGAO_CANRENAME | /*0x00000010 */
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SFGAO_CANDELETE | /*0x00000020 */
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SFGAO_HASPROPSHEET | /*0x00000040 */
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SFGAO_DROPTARGET | /*0x00000100 */
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SFGAO_LINK | /*0x00010000 */
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SFGAO_READONLY | /*0x00040000 */
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SFGAO_HIDDEN | /*0x00080000 */
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SFGAO_FILESYSANCESTOR | /*0x10000000 */
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SFGAO_FOLDER | /*0x20000000 */
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SFGAO_FILESYSTEM | /*0x40000000 */
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SFGAO_HASSUBFOLDER; /*0x80000000 */
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TRACE ("0x%08x\n", *pdwAttributes);
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if (*pdwAttributes & ~dwSupportedAttr)
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{
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WARN ("attributes 0x%08x not implemented\n", (*pdwAttributes & ~dwSupportedAttr));
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*pdwAttributes &= dwSupportedAttr;
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}
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has_guid = _ILGetGUIDPointer(pidl) != NULL;
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dwAttributes = *pdwAttributes;
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if (has_guid && HCR_GetFolderAttributes(pidl, &dwAttributes))
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*pdwAttributes = dwAttributes;
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else if (_ILGetDataPointer(pidl))
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{
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dwAttributes = _ILGetFileAttributes(pidl, NULL, 0);
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if (!dwAttributes && has_guid)
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{
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WCHAR path[MAX_PATH];
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STRRET strret;
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/* File attributes are not present in the internal PIDL structure, so get them from the file system. */
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HRESULT hr = psf->GetDisplayNameOf(pidl, SHGDN_FORPARSING, &strret);
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if (SUCCEEDED(hr))
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{
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hr = StrRetToBufW(&strret, pidl, path, MAX_PATH);
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/* call GetFileAttributes() only for file system paths, not for parsing names like "::{...}" */
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if (SUCCEEDED(hr) && path[0]!=':')
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dwAttributes = GetFileAttributesW(path);
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}
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}
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/* Set common attributes */
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*pdwAttributes |= SFGAO_FILESYSTEM | SFGAO_DROPTARGET | SFGAO_HASPROPSHEET | SFGAO_CANDELETE |
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SFGAO_CANRENAME | SFGAO_CANLINK | SFGAO_CANMOVE | SFGAO_CANCOPY;
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if (dwAttributes & FILE_ATTRIBUTE_DIRECTORY)
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{
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*pdwAttributes |= (SFGAO_FOLDER | SFGAO_HASSUBFOLDER | SFGAO_FILESYSANCESTOR);
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}
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else
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*pdwAttributes &= ~(SFGAO_FOLDER | SFGAO_HASSUBFOLDER | SFGAO_FILESYSANCESTOR);
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if (dwAttributes & FILE_ATTRIBUTE_HIDDEN)
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*pdwAttributes |= SFGAO_HIDDEN;
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else
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*pdwAttributes &= ~SFGAO_HIDDEN;
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if (dwAttributes & FILE_ATTRIBUTE_READONLY)
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*pdwAttributes |= SFGAO_READONLY;
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else
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*pdwAttributes &= ~SFGAO_READONLY;
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if (SFGAO_LINK & *pdwAttributes)
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{
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char ext[MAX_PATH];
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if (!_ILGetExtension(pidl, ext, MAX_PATH) || lstrcmpiA(ext, "lnk"))
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*pdwAttributes &= ~SFGAO_LINK;
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}
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if (SFGAO_HASSUBFOLDER & *pdwAttributes)
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{
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IShellFolder *psf2;
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if (SUCCEEDED(psf->BindToObject(pidl, 0, IID_PPV_ARG(IShellFolder, &psf2))))
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{
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IEnumIDList *pEnumIL = NULL;
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if (SUCCEEDED(psf2->EnumObjects(0, SHCONTF_FOLDERS, &pEnumIL)))
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{
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if (pEnumIL->Skip(1) != S_OK)
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*pdwAttributes &= ~SFGAO_HASSUBFOLDER;
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pEnumIL->Release();
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}
|
|
psf2->Release();
|
|
}
|
|
}
|
|
} else
|
|
*pdwAttributes &= SFGAO_HASSUBFOLDER|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR|SFGAO_DROPTARGET|SFGAO_HASPROPSHEET|SFGAO_CANRENAME|SFGAO_CANLINK;
|
|
|
|
TRACE ("-- 0x%08x\n", *pdwAttributes);
|
|
return S_OK;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* SHELL32_CompareIDs
|
|
*/
|
|
HRESULT SHELL32_CompareIDs (IShellFolder * iface, LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
|
|
{
|
|
int type1,
|
|
type2;
|
|
char szTemp1[MAX_PATH];
|
|
char szTemp2[MAX_PATH];
|
|
HRESULT nReturn;
|
|
LPITEMIDLIST firstpidl,
|
|
nextpidl1,
|
|
nextpidl2;
|
|
IShellFolder *psf;
|
|
|
|
/* test for empty pidls */
|
|
BOOL isEmpty1 = _ILIsDesktop (pidl1);
|
|
BOOL isEmpty2 = _ILIsDesktop (pidl2);
|
|
|
|
if (isEmpty1 && isEmpty2)
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 0 );
|
|
if (isEmpty1)
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
|
|
if (isEmpty2)
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
|
|
|
|
/* test for different types. Sort order is the PT_* constant */
|
|
type1 = _ILGetDataPointer (pidl1)->type;
|
|
type2 = _ILGetDataPointer (pidl2)->type;
|
|
if (type1 < type2)
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
|
|
else if (type1 > type2)
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
|
|
|
|
/* test for name of pidl */
|
|
_ILSimpleGetText (pidl1, szTemp1, MAX_PATH);
|
|
_ILSimpleGetText (pidl2, szTemp2, MAX_PATH);
|
|
nReturn = lstrcmpiA (szTemp1, szTemp2);
|
|
if (nReturn < 0)
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
|
|
else if (nReturn > 0)
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
|
|
|
|
/* test of complex pidls */
|
|
firstpidl = ILCloneFirst (pidl1);
|
|
nextpidl1 = ILGetNext (pidl1);
|
|
nextpidl2 = ILGetNext (pidl2);
|
|
|
|
/* optimizing: test special cases and bind not deeper */
|
|
/* the deeper shellfolder would do the same */
|
|
isEmpty1 = _ILIsDesktop (nextpidl1);
|
|
isEmpty2 = _ILIsDesktop (nextpidl2);
|
|
|
|
if (isEmpty1 && isEmpty2) {
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 0 );
|
|
} else if (isEmpty1) {
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
|
|
} else if (isEmpty2) {
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
|
|
/* optimizing end */
|
|
} else if (SUCCEEDED (iface->BindToObject(firstpidl, NULL, IID_PPV_ARG(IShellFolder, &psf)))) {
|
|
nReturn = psf->CompareIDs(lParam, nextpidl1, nextpidl2);
|
|
psf->Release();
|
|
}
|
|
ILFree (firstpidl);
|
|
return nReturn;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* SHCreateLinks
|
|
*
|
|
* Undocumented.
|
|
*/
|
|
HRESULT WINAPI SHCreateLinks( HWND hWnd, LPCSTR lpszDir, LPDATAOBJECT lpDataObject,
|
|
UINT uFlags, LPITEMIDLIST *lppidlLinks)
|
|
{
|
|
FIXME("%p %s %p %08x %p\n",hWnd,lpszDir,lpDataObject,uFlags,lppidlLinks);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* SHOpenFolderAndSelectItems
|
|
*
|
|
* Unimplemented.
|
|
*/
|
|
EXTERN_C HRESULT
|
|
WINAPI
|
|
SHOpenFolderAndSelectItems(LPITEMIDLIST pidlFolder,
|
|
UINT cidl,
|
|
PCUITEMID_CHILD_ARRAY apidl,
|
|
DWORD dwFlags)
|
|
{
|
|
FIXME("SHOpenFolderAndSelectItems() stub\n");
|
|
return E_NOTIMPL;
|
|
}
|