[reactos] 03/04: [SHELL32] Show properties dialog in a new thread

[Mark Jansen]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=bc5603d9d078c4c276d85…

commit bc5603d9d078c4c276d852d636a2ba642288f984
Author:     Mark Jansen <mark.jansen(a)reactos.org>
AuthorDate: Thu Feb 3 23:23:33 2022 +0100
Commit:     Mark Jansen <mark.jansen(a)reactos.org>
CommitDate: Mon Feb 7 20:56:46 2022 +0100

    [SHELL32] Show properties dialog in a new thread
---
 dll/win32/shell32/shlfolder.cpp | 81 ++++++++++++++++++++++++++++++-----------
 1 file changed, 60 insertions(+), 21 deletions(-)

diff --git a/dll/win32/shell32/shlfolder.cpp b/dll/win32/shell32/shlfolder.cpp
index 03b4aa4ee11..01018b44ede 100644
--- a/dll/win32/shell32/shlfolder.cpp
+++ b/dll/win32/shell32/shlfolder.cpp
@@ -26,6 +26,24 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(shell);
 
+static
+HRESULT WINAPI _SHBindToFolder(LPCITEMIDLIST path, IShellFolder** newFolder)
+{
+    CComPtr<IShellFolder>                   desktop;
+
+    HRESULT hr = ::SHGetDesktopFolder(&desktop);
+    if (FAILED_UNEXPECTEDLY(hr))
+        return E_FAIL;
+    if (path == NULL || path->mkid.cb == 0)
+    {
+        *newFolder = desktop;
+        desktop.p->AddRef();
+        return S_OK;
+    }
+    return desktop->BindToObject(path, NULL, IID_PPV_ARG(IShellFolder, newFolder));
+}
+
+
 /***************************************************************************
  *  GetNextElement (internal function)
  *
@@ -422,33 +440,39 @@ SHOpenFolderAndSelectItems(PCIDLIST_ABSOLUTE pidlFolder,
         return E_FAIL;
 }
 
-/*
- * for internal use
- */
-HRESULT WINAPI
-Shell_DefaultContextMenuCallBack(IShellFolder *psf, IDataObject *pdtobj)
+
+
+static
+DWORD WINAPI
+_ShowPropertiesDialogThread(LPVOID lpParameter)
 {
-    PIDLIST_ABSOLUTE pidlFolder;
-    PUITEMID_CHILD *apidl;
-    UINT cidl;
-    HRESULT hr = SH_GetApidlFromDataObject(pdtobj, &pidlFolder, &apidl,
&cidl);
-    if (FAILED_UNEXPECTEDLY(hr))
-        return hr;
+    CComPtr<IDataObject> pDataObject;
+    pDataObject.Attach((IDataObject*)lpParameter);
+
+    CDataObjectHIDA cida(pDataObject);
 
-    if (cidl > 1)
+    if (FAILED_UNEXPECTEDLY(cida.hr()))
+        return cida.hr();
+
+    if (cida->cidl > 1)
     {
         ERR("SHMultiFileProperties is not yet implemented\n");
-        SHFree(pidlFolder);
-        _ILFreeaPidl(apidl, cidl);
         return E_FAIL;
     }
 
+    PCUIDLIST_ABSOLUTE pidlFolder = HIDA_GetPIDLFolder(cida);
+    CComPtr<IShellFolder> psfParent;
+    HRESULT hr = _SHBindToFolder(pidlFolder, &psfParent);
+    if (FAILED_UNEXPECTEDLY(hr))
+        return hr;
+
     STRRET strFile;
-    hr = psf->GetDisplayNameOf(apidl[0], SHGDN_FORPARSING, &strFile);
-    if (SUCCEEDED(hr))
+    PCUIDLIST_RELATIVE apidl = HIDA_GetPIDLItem(cida, 0);
+    hr = psfParent->GetDisplayNameOf(apidl, SHGDN_FORPARSING, &strFile);
+    if (!FAILED_UNEXPECTEDLY(hr))
     {
-        hr = SH_ShowPropertiesDialog(strFile.pOleStr, pidlFolder, apidl);
-        if (FAILED(hr))
+        BOOL bSuccess = SH_ShowPropertiesDialog(strFile.pOleStr, pidlFolder,
&apidl);
+        if (!bSuccess)
             ERR("SH_ShowPropertiesDialog failed\n");
     }
     else
@@ -456,8 +480,23 @@ Shell_DefaultContextMenuCallBack(IShellFolder *psf, IDataObject
*pdtobj)
         ERR("Failed to get display name\n");
     }
 
-    SHFree(pidlFolder);
-    _ILFreeaPidl(apidl, cidl);
+    return 0;
+}
 
-    return hr;
+/*
+ * for internal use
+ */
+HRESULT WINAPI
+Shell_DefaultContextMenuCallBack(IShellFolder *psf, IDataObject *pdtobj)
+{
+    pdtobj->AddRef();
+    if (!SHCreateThread(_ShowPropertiesDialogThread, pdtobj, CTF_INSIST | CTF_COINIT,
NULL))
+    {
+        pdtobj->Release();
+        return HRESULT_FROM_WIN32(GetLastError());
+    }
+    else
+    {
+        return S_OK;
+    }
 }