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- Add support for custom shell folders, such as the History folder. 

- Always try to initialize folder using IPersistFolder3 interface and
  then fall back on IPersistFolder if not supported.
This commit is contained in:
Robert Shearman 2004-09-28 19:33:44 +00:00 committed by Alexandre Julliard
parent e8d89cd0f5
commit 5ad2d3517f
2 changed files with 76 additions and 54 deletions
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8
dlls/shell32/shfldr.h
View File

@ -21,6 +21,8 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define CHARS_IN_GUID 39
typedef struct {
int colnameid;
int pcsFlags;
@ -31,14 +33,12 @@ typedef struct {
#define GET_SHGDN_FOR(dwFlags) ((DWORD)dwFlags & (DWORD)0x0000FF00)
#define GET_SHGDN_RELATION(dwFlags) ((DWORD)dwFlags & (DWORD)0x000000FF)
BOOL SHELL32_GetCustomFolderAttribute (LPCITEMIDLIST pidl, LPCWSTR pwszHeading, LPCWSTR pwszAttribute, LPWSTR pwszValue, DWORD cchValue);
LPCWSTR GetNextElementW (LPCWSTR pszNext, LPWSTR pszOut, DWORD dwOut);
HRESULT SHELL32_ParseNextElement (IShellFolder2 * psf, HWND hwndOwner, LPBC pbc, LPITEMIDLIST * pidlInOut,
LPOLESTR szNext, DWORD * pEaten, DWORD * pdwAttributes);
HRESULT SHELL32_GetItemAttributes (IShellFolder * psf, LPCITEMIDLIST pidl, LPDWORD pdwAttributes);
HRESULT SHELL32_CoCreateInitSF (LPCITEMIDLIST pidlRoot, LPCITEMIDLIST pidlChild, REFCLSID clsid, REFIID iid,
LPVOID * ppvOut);
HRESULT SHELL32_CoCreateInitSFEx (LPCITEMIDLIST pidlRoot, LPCSTR pathRoot, LPCITEMIDLIST pidlChild, REFCLSID clsid,
REFIID iid, LPVOID * ppvOut);
HRESULT SHELL32_GetDisplayNameOfChild (IShellFolder2 * psf, LPCITEMIDLIST pidl, DWORD dwFlags, LPSTR szOut,
DWORD dwOutLen);

122
dlls/shell32/shlfolder.c
View File

@ -64,6 +64,52 @@ WINE_DEFAULT_DEBUG_CHANNEL (shell);
#define _CALL_TRACE
#endif
static const WCHAR wszDotShellClassInfo[] = {'.','S','h','e','l','l','C','l','a','s','s','I','n','f','o',0};
/***************************************************************************
* SHELL32_GetCustomFolderAttribute (internal function)
*
* Gets a value from the folder's desktop.ini file, if one exists.
*
* PARAMETERS
* pidl [I] Folder containing the desktop.ini file.
* pwszHeading [I] Heading in .ini file.
* pwszAttribute [I] Attribute in .ini file.
* pwszValue [O] Buffer to store value into.
* cchValue [I] Size in characters including NULL of buffer pointed to
* by pwszValue.
*
* RETURNS
* TRUE if returned non-NULL value.
* FALSE otherwise.
*/
BOOL SHELL32_GetCustomFolderAttribute(
LPCITEMIDLIST pidl, LPCWSTR pwszHeading, LPCWSTR pwszAttribute,
LPWSTR pwszValue, DWORD cchValue)
{
#if 0 /* Hack around not having system attribute on non-Windows file systems */
DWORD dwAttrib = _ILGetFileAttributes(pidl, NULL, 0);
#else
DWORD dwAttrib = FILE_ATTRIBUTE_SYSTEM;
#endif
if (dwAttrib & FILE_ATTRIBUTE_SYSTEM)
{
DWORD ret;
WCHAR wszDesktopIniPath[MAX_PATH];
static const WCHAR wszDesktopIni[] =
{'d','e','s','k','t','o','p','.','i','n','i',0};
if (!SHGetPathFromIDListW(pidl, wszDesktopIniPath))
return FALSE;
PathAppendW(wszDesktopIniPath, wszDesktopIni);
ret = GetPrivateProfileStringW(pwszHeading, pwszAttribute,
NULL, pwszValue, cchValue, wszDesktopIniPath);
if (!ret) return FALSE;
return TRUE;
}
return FALSE;
}
/***************************************************************************
* GetNextElement (internal function)
*
@ -143,68 +189,31 @@ HRESULT SHELL32_ParseNextElement (IShellFolder2 * psf, HWND hwndOwner, LPBC pbc,
/***********************************************************************
* SHELL32_CoCreateInitSF
*
* Creates a shell folder and initializes it with a pidl via IPersistFolder.
* This function is meant for virtual folders not backed by a file system
* folder.
*/
HRESULT SHELL32_CoCreateInitSF (LPCITEMIDLIST pidlRoot,
LPCITEMIDLIST pidlChild, REFCLSID clsid, REFIID iid, LPVOID * ppvOut)
{
HRESULT hr;
TRACE ("%p %p\n", pidlRoot, pidlChild);
if (SUCCEEDED ((hr = SHCoCreateInstance (NULL, clsid, NULL, iid, ppvOut)))) {
IPersistFolder *pPF;
if (SUCCEEDED ((hr = IUnknown_QueryInterface ((IUnknown *) * ppvOut, &IID_IPersistFolder, (LPVOID *) & pPF)))) {
LPITEMIDLIST pidlAbsolute;
pidlAbsolute = ILCombine (pidlRoot, pidlChild);
IPersistFolder_Initialize (pPF, pidlAbsolute);
IPersistFolder_Release (pPF);
SHFree (pidlAbsolute);
if (!pidlAbsolute)
hr = E_OUTOFMEMORY;
}
}
TRACE ("-- (%p) ret=0x%08lx\n", *ppvOut, hr);
return hr;
}
/***********************************************************************
* SHELL32_CoCreateInitSFEx
*
* Creates a shell folder and initializes it with a pidl and a root folder
* via IPersistFolder3.
* This function is meant for virtual folders backed by a file system
* folder.
* via IPersistFolder3 or IPersistFolder.
*
* NOTES
* pathRoot can be NULL for Folders beeing a drive.
* In this case the absolute path is build from pidlChild (eg. C:)
*/
HRESULT SHELL32_CoCreateInitSFEx (LPCITEMIDLIST pidlRoot,
LPCSTR pathRoot, LPCITEMIDLIST pidlChild, REFCLSID clsid, REFIID riid, LPVOID * ppvOut)
HRESULT SHELL32_CoCreateInitSF (LPCITEMIDLIST pidlRoot, LPCSTR pathRoot,
LPCITEMIDLIST pidlChild, REFCLSID clsid, REFIID riid, LPVOID * ppvOut)
{
HRESULT hr;
IPersistFolder3 *ppf;
TRACE ("%p %s %p\n", pidlRoot, pathRoot, pidlChild);
if (SUCCEEDED ((hr = SHCoCreateInstance (NULL, &CLSID_ShellFSFolder, NULL, riid, ppvOut)))) {
if (SUCCEEDED ((hr = SHCoCreateInstance (NULL, clsid, NULL, riid, ppvOut)))) {
LPITEMIDLIST pidlAbsolute = ILCombine (pidlRoot, pidlChild);
IPersistFolder *pPF;
IPersistFolder3 *ppf;
if (SUCCEEDED (IUnknown_QueryInterface ((IUnknown *) * ppvOut, &IID_IPersistFolder3, (LPVOID *) & ppf))) {
PERSIST_FOLDER_TARGET_INFO ppfti;
LPITEMIDLIST pidlAbsolute;
char szDestPath[MAX_PATH];
ZeroMemory (&ppfti, sizeof (ppfti));
/* combine pidls */
pidlAbsolute = ILCombine (pidlRoot, pidlChild);
/* build path */
if (pathRoot) {
lstrcpyA (szDestPath, pathRoot);
@ -229,8 +238,12 @@ HRESULT SHELL32_CoCreateInitSFEx (LPCITEMIDLIST pidlRoot,
IPersistFolder3_InitializeEx (ppf, NULL, pidlAbsolute, &ppfti);
IPersistFolder3_Release (ppf);
ILFree (pidlAbsolute);
}
else if (SUCCEEDED ((hr = IUnknown_QueryInterface ((IUnknown *) * ppvOut, &IID_IPersistFolder, (LPVOID *) & pPF)))) {
IPersistFolder_Initialize (pPF, pidlAbsolute);
IPersistFolder_Release (pPF);
}
ILFree (pidlAbsolute);
}
TRACE ("-- (%p) ret=0x%08lx\n", *ppvOut, hr);
return hr;
@ -259,11 +272,20 @@ HRESULT SHELL32_BindToChild (LPCITEMIDLIST pidlRoot,
if ((clsid = _ILGetGUIDPointer (pidlChild))) {
/* virtual folder */
hr = SHELL32_CoCreateInitSF (pidlRoot, pidlChild, clsid, &IID_IShellFolder, (LPVOID *) & pSF);
hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild, clsid, &IID_IShellFolder, (LPVOID *) & pSF);
} else {
/* file system folder */
hr = SHELL32_CoCreateInitSFEx (pidlRoot, pathRoot, pidlChild, &CLSID_ShellFSFolder, &IID_IShellFolder,
(LPVOID *) & pSF);
/* file system folder */
CLSID clsidFolder = CLSID_ShellFSFolder;
static const WCHAR wszCLSID[] = {'C','L','S','I','D',0};
WCHAR wszCLSIDValue[CHARS_IN_GUID];
LPITEMIDLIST pidlAbsolute = ILCombine (pidlRoot, pidlChild);
/* see if folder CLSID should be overridden by desktop.ini file */
if (SHELL32_GetCustomFolderAttribute (pidlAbsolute,
wszDotShellClassInfo, wszCLSID, wszCLSIDValue, CHARS_IN_GUID))
CLSIDFromString (wszCLSIDValue, &clsidFolder);
ILFree (pidlAbsolute);
hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild,
&clsidFolder, &IID_IShellFolder, (LPVOID *)&pSF);
}
ILFree (pidlChild);