[BROWSEUI] Find files must forward IItemNameLimits to the FS folder (reactos#8176)

Author: whindsaks

dll/win32/browseui/shellfind/CFindFolder.cpp

@@ -1229,6 +1229,21 @@ STDMETHODIMP CFindFolder::MessageSFVCB(UINT uMsg, WPARAM wParam, LPARAM lParam)
     return E_NOTIMPL;
 }
 
+//// *** IItemNameLimits methods ***
+STDMETHODIMP CFindFolder::GetMaxLength(LPCWSTR pszName, int *piMaxNameLen)
+{
+    CComPtr<IItemNameLimits> pLimits;
+    HRESULT hr = m_pisfInner->QueryInterface(IID_PPV_ARG(IItemNameLimits, &pLimits));
+    return FAILED_UNEXPECTEDLY(hr) ? hr : pLimits->GetMaxLength(pszName, piMaxNameLen);;
+}
+
+STDMETHODIMP CFindFolder::GetValidCharacters(LPWSTR *ppwszValidChars, LPWSTR *ppwszInvalidChars)
+{
+    CComPtr<IItemNameLimits> pLimits;
+    HRESULT hr = m_pisfInner->QueryInterface(IID_PPV_ARG(IItemNameLimits, &pLimits));
+    return FAILED_UNEXPECTEDLY(hr) ? hr : pLimits->GetValidCharacters(ppwszValidChars, ppwszInvalidChars);
+}
+
 //// *** IPersistFolder2 methods ***
 STDMETHODIMP CFindFolder::GetCurFolder(PIDLIST_ABSOLUTE *pidl)
 {

dll/win32/browseui/shellfind/CFindFolder.h

@@ -16,6 +16,7 @@ class CFindFolder :
         public IShellFolder2,
         public IPersistFolder2,
         public IShellFolderViewCB,
+        public IItemNameLimits,
         public IConnectionPointContainerImpl<CFindFolder>,
         public IConnectionPointImpl<CFindFolder, &DIID_DSearchCommandEvents>
 {
@@ -62,6 +63,10 @@ class CFindFolder :
     //// *** IShellFolderViewCB methods ***
     STDMETHODIMP MessageSFVCB(UINT uMsg, WPARAM wParam, LPARAM lParam);
 
+    //// *** IItemNameLimits methods ***
+    STDMETHOD(GetMaxLength)(LPCWSTR pszName, int *piMaxNameLen) override;
+    STDMETHOD(GetValidCharacters)(LPWSTR *ppwszValidChars, LPWSTR *ppwszInvalidChars) override;
+
 private:
     LPITEMIDLIST m_pidl;
     CComPtr<IShellFolder2> m_pisfInner, m_pSfDesktop;
@@ -121,6 +126,7 @@ class CFindFolder :
         COM_INTERFACE_ENTRY_IID(IID_IShellFolder2, IShellFolder2)
         COM_INTERFACE_ENTRY_IID(IID_IShellFolder, IShellFolder)
         COM_INTERFACE_ENTRY_IID(IID_IShellFolderViewCB, IShellFolderViewCB)
+        COM_INTERFACE_ENTRY_IID(IID_IItemNameLimits, IItemNameLimits)
         COM_INTERFACE_ENTRY_IID(IID_IPersistFolder2, IPersistFolder2)
         COM_INTERFACE_ENTRY_IID(IID_IPersistFolder, IPersistFolder)
         COM_INTERFACE_ENTRY_IID(IID_IPersist, IPersist)

dll/win32/shell32/folders/CFSFolder.h

@@ -97,13 +97,9 @@ class CFSFolder :
         GetValidCharacters(LPWSTR *ppwszValidChars, LPWSTR *ppwszInvalidChars) override
         {
             if (ppwszValidChars)
-            {
                 *ppwszValidChars = NULL;
-            }
             if (ppwszInvalidChars)
-            {
-                SHStrDupW(INVALID_FILETITLE_CHARACTERSW, ppwszInvalidChars);
-            }
+                return SHStrDupW(INVALID_FILETITLE_CHARACTERSW, ppwszInvalidChars);
             return S_OK;
         }