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[SHELL32] Add support for custom View objects defined with UICLSID

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CORE-16271
This commit is contained in:
Mark Jansen 2019-08-04 02:42:09 +02:00
parent a99325c716
commit 5d54b65ceb
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GPG key ID: B39240EE84BEAE8B
1 changed files with 73 additions and 29 deletions
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102
dll/win32/shell32/folders/CFSFolder.cpp
View file

@ -490,22 +490,23 @@ LPITEMIDLIST SHELL32_CreatePidlFromBindCtx(IBindCtx *pbc, LPCWSTR path)
return pidl;
}
void SHELL32_GetCLSIDForDirectory(LPCWSTR pwszDir, CLSID* pclsidFolder)
static HRESULT SHELL32_GetCLSIDForDirectory(LPCWSTR pwszDir, LPCWSTR KeyName, CLSID* pclsidFolder)
{
WCHAR wszCLSIDValue[CHARS_IN_GUID];
WCHAR wszDesktopIni[MAX_PATH];
StringCchCopyW(wszDesktopIni, MAX_PATH, pwszDir);
StringCchCatW(wszDesktopIni, MAX_PATH, L"\\desktop.ini");
if (GetPrivateProfileStringW(L".ShellClassInfo",
L"CLSID",
if (GetPrivateProfileStringW(L".ShellClassInfo",
KeyName,
L"",
wszCLSIDValue,
CHARS_IN_GUID,
wszCLSIDValue,
CHARS_IN_GUID,
wszDesktopIni))
{
CLSIDFromString (wszCLSIDValue, pclsidFolder);
return CLSIDFromString(wszCLSIDValue, pclsidFolder);
}
return E_FAIL;
}
HRESULT SHELL32_GetFSItemAttributes(IShellFolder * psf, LPCITEMIDLIST pidl, LPDWORD pdwAttributes)
@ -742,7 +743,7 @@ HRESULT WINAPI CFSFolder::BindToObject(
clsidFolder = CLSID_ShellFSFolder;
if ((pData->uFileAttribs & (FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_READONLY)) != 0)
SHELL32_GetCLSIDForDirectory(pfti.szTargetParsingName, &clsidFolder);
SHELL32_GetCLSIDForDirectory(pfti.szTargetParsingName, L"CLSID", &clsidFolder);
}
else
{
@ -857,30 +858,73 @@ HRESULT WINAPI CFSFolder::CreateViewObject(HWND hwndOwner,
{
*ppvOut = NULL;
if (IsEqualIID (riid, IID_IDropTarget))
hr = CFSDropTarget_CreateInstance(sPathTarget, riid, ppvOut);
else if (IsEqualIID (riid, IID_IContextMenu))
{
HKEY hKeys[16];
UINT cKeys = 0;
AddClassKeyToArray(L"Directory\\Background", hKeys, &cKeys);
BOOL bIsDropTarget = IsEqualIID (riid, IID_IDropTarget);
BOOL bIsShellView = !bIsDropTarget && IsEqualIID (riid, IID_IShellView);
DEFCONTEXTMENU dcm;
dcm.hwnd = hwndOwner;
dcm.pcmcb = this;
dcm.pidlFolder = pidlRoot;
dcm.psf = this;
dcm.cidl = 0;
dcm.apidl = NULL;
dcm.cKeys = cKeys;
dcm.aKeys = hKeys;
dcm.punkAssociationInfo = NULL;
hr = SHCreateDefaultContextMenu (&dcm, riid, ppvOut);
}
else if (IsEqualIID (riid, IID_IShellView))
if (bIsDropTarget || bIsShellView)
{
SFV_CREATE sfvparams = {sizeof(SFV_CREATE), this, NULL, this};
hr = SHCreateShellFolderView(&sfvparams, (IShellView**)ppvOut);
DWORD dwDirAttributes = _ILGetFileAttributes(ILFindLastID(pidlRoot), NULL, 0);
if ((dwDirAttributes & (FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_READONLY)) != 0)
{
CLSID clsidFolder;
hr = SHELL32_GetCLSIDForDirectory(sPathTarget, L"UICLSID", &clsidFolder);
if (SUCCEEDED(hr))
{
CComPtr<IPersistFolder> spFolder;
hr = SHCoCreateInstance(NULL, &clsidFolder, NULL, IID_PPV_ARG(IPersistFolder, &spFolder));
if (!FAILED_UNEXPECTEDLY(hr))
{
hr = spFolder->Initialize(pidlRoot);
if (!FAILED_UNEXPECTEDLY(hr))
{
hr = spFolder->QueryInterface(riid, ppvOut);
}
}
}
else
{
// No desktop.ini, or no UICLSID present, continue as if nothing happened
hr = E_INVALIDARG;
}
}
}
if (!SUCCEEDED(hr))
{
// No UICLSID handler found, continue to the default handlers
if (bIsDropTarget)
{
hr = CFSDropTarget_CreateInstance(sPathTarget, riid, ppvOut);
}
else if (IsEqualIID (riid, IID_IContextMenu))
{
HKEY hKeys[16];
UINT cKeys = 0;
AddClassKeyToArray(L"Directory\\Background", hKeys, &cKeys);
DEFCONTEXTMENU dcm;
dcm.hwnd = hwndOwner;
dcm.pcmcb = this;
dcm.pidlFolder = pidlRoot;
dcm.psf = this;
dcm.cidl = 0;
dcm.apidl = NULL;
dcm.cKeys = cKeys;
dcm.aKeys = hKeys;
dcm.punkAssociationInfo = NULL;
hr = SHCreateDefaultContextMenu (&dcm, riid, ppvOut);
}
else if (bIsShellView)
{
SFV_CREATE sfvparams = {sizeof(SFV_CREATE), this, NULL, this};
hr = SHCreateShellFolderView(&sfvparams, (IShellView**)ppvOut);
}
else
{
hr = E_INVALIDARG;
}
}
}
TRACE("-- (%p)->(interface=%p)\n", this, ppvOut);