From 07cad9b0dda984ae4ebf8163eae8e95bba6e9d25 Mon Sep 17 00:00:00 2001
From: Amine Khaldi <amine.khaldi@reactos.org>
Date: Fri, 4 Dec 2015 11:12:01 +0000
Subject: [PATCH] [SHELL32] Disable 'Empty Recycle Bin' when no items are
 present. By Mark Jansen. CORE-10438

svn path=/trunk/; revision=70264
---
 reactos/dll/win32/shell32/folders/CRecycleBin.cpp | 13 ++++++++++++-
 reactos/dll/win32/shell32/folders/CRecycleBin.h   |  1 +
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/reactos/dll/win32/shell32/folders/CRecycleBin.cpp b/reactos/dll/win32/shell32/folders/CRecycleBin.cpp
index ae68c9fd660..4f901ce25a1 100644
--- a/reactos/dll/win32/shell32/folders/CRecycleBin.cpp
+++ b/reactos/dll/win32/shell32/folders/CRecycleBin.cpp
@@ -801,6 +801,17 @@ HRESULT WINAPI CRecycleBin::MapColumnToSCID(UINT iColumn, SHCOLUMNID *pscid)
     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 @@ HRESULT WINAPI CRecycleBin::QueryContextMenu(HMENU hMenu, UINT indexMenu, UINT i
     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;
diff --git a/reactos/dll/win32/shell32/folders/CRecycleBin.h b/reactos/dll/win32/shell32/folders/CRecycleBin.h
index ba32ff54630..758860b955a 100644
--- a/reactos/dll/win32/shell32/folders/CRecycleBin.h
+++ b/reactos/dll/win32/shell32/folders/CRecycleBin.h
@@ -44,6 +44,7 @@ class CRecycleBin :
         void SF_RegisterClipFmt();
         BOOL fAcceptFmt;       /* flag for pending Drop */
         BOOL QueryDrop (DWORD dwKeyState, LPDWORD pdwEffect);
+        BOOL RecycleBinIsEmpty();
 
     public:
         CRecycleBin();
-- 
2.17.1