[akhaldi] 70264: [SHELL32] Disable 'Empty Recycle Bin' when no items are present. By Mark Jansen. CORE-10438

Author: akhaldi
Date: Fri Dec  4 11:12:01 2015
New Revision: 70264

URL: http://svn.reactos.org/svn/reactos?rev=70264&view=rev
Log:
[SHELL32] Disable 'Empty Recycle Bin' when no items are present. By Mark Jansen. CORE-10438

Modified:
    trunk/reactos/dll/win32/shell32/folders/CRecycleBin.cpp
    trunk/reactos/dll/win32/shell32/folders/CRecycleBin.h

Modified: trunk/reactos/dll/win32/shell32/folders/CRecycleBin.cpp
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/shell32/folders/C...
==============================================================================
--- trunk/reactos/dll/win32/shell32/folders/CRecycleBin.cpp	[iso-8859-1] (original)
+++ trunk/reactos/dll/win32/shell32/folders/CRecycleBin.cpp	[iso-8859-1] Fri Dec  4 11:12:01 2015
@@ -801,6 +801,17 @@
     return S_OK;
 }

+BOOL CRecycleBin::RecycleBinIsEmpty()
+{
+    CComPtr<IEnumIDList> spEnumFiles;
+    HRESULT hr = EnumObjects(NULL, SHCONTF_FOLDERS | SHCONTF_NONFOLDERS, &spEnumFiles);
+    if (FAILED(hr))
+        return TRUE;
+    CComHeapPtr<ITEMIDLIST> spPidl;
+    ULONG itemcount;
+    return spEnumFiles->Next(1, &spPidl, &itemcount) != S_OK;
+    }
+
 /*************************************************************************
  * RecycleBin IContextMenu interface
  */
@@ -819,7 +830,7 @@
     memset(&mii, 0, sizeof(mii));
     mii.cbSize = sizeof(mii);
     mii.fMask = MIIM_TYPE | MIIM_ID | MIIM_STATE;
-    mii.fState = MFS_ENABLED;
+    mii.fState = RecycleBinIsEmpty() ? MFS_DISABLED : MFS_ENABLED;
     szBuffer[0] = L'\0';
     LoadStringW(shell32_hInstance, IDS_EMPTY_BITBUCKET, szBuffer, sizeof(szBuffer) / sizeof(WCHAR));
     mii.dwTypeData = szBuffer;

Modified: trunk/reactos/dll/win32/shell32/folders/CRecycleBin.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/shell32/folders/C...
==============================================================================
--- trunk/reactos/dll/win32/shell32/folders/CRecycleBin.h	[iso-8859-1] (original)
+++ trunk/reactos/dll/win32/shell32/folders/CRecycleBin.h	[iso-8859-1] Fri Dec  4 11:12:01 2015
@@ -44,6 +44,7 @@
         void SF_RegisterClipFmt();
         BOOL fAcceptFmt;       /* flag for pending Drop */
         BOOL QueryDrop (DWORD dwKeyState, LPDWORD pdwEffect);
+        BOOL RecycleBinIsEmpty();

public:
         CRecycleBin();