[reactos] 05/06: [FONTEXT] Simplify HIDA usage

[Mark Jansen]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=54c09f856c315c4266fff1...

commit 54c09f856c315c4266fff190aa6ba4524a4e9943
Author:     Mark Jansen [e-mail]
AuthorDate: Sun Jul 25 01:10:51 2021 +0200
Commit:     Mark Jansen [e-mail]
CommitDate: Mon Nov 15 20:02:14 2021 +0100

[FONTEXT] Simplify HIDA usage
---
 dll/shellext/fontext/CFontExt.cpp  | 14 ++++++-------
 dll/shellext/fontext/CFontMenu.cpp | 42 +++++---------------------------------
 dll/shellext/fontext/precomp.h     |  2 --
 3 files changed, 11 insertions(+), 47 deletions(-)

diff --git a/dll/shellext/fontext/CFontExt.cpp b/dll/shellext/fontext/CFontExt.cpp
index b2681055cd2..23b7e0b2721 100644
--- a/dll/shellext/fontext/CFontExt.cpp
+++ b/dll/shellext/fontext/CFontExt.cpp
@@ -505,10 +505,9 @@ STDMETHODIMP CFontExt::DragEnter(IDataObject* pDataObj, DWORD grfKeyState, POINT
 {
     *pdwEffect = DROPEFFECT_NONE;

-    CComHeapPtr<CIDA> cida;
-    HRESULT hr = _GetCidlFromDataObject(pDataObj, &cida);
-    if (FAILED_UNEXPECTEDLY(hr))
-        return hr;
+    CDataObjectHIDA cida(pDataObj);
+    if (FAILED_UNEXPECTEDLY(cida.hr()))
+        return cida.hr();

*pdwEffect = DROPEFFECT_COPY;
     return S_OK;
@@ -528,10 +527,9 @@ STDMETHODIMP CFontExt::Drop(IDataObject* pDataObj, DWORD grfKeyState, POINTL pt,
 {
     *pdwEffect = DROPEFFECT_NONE;

-    CComHeapPtr<CIDA> cida;
-    HRESULT hr = _GetCidlFromDataObject(pDataObj, &cida);
-    if (FAILED_UNEXPECTEDLY(hr))
-        return hr;
+    CDataObjectHIDA cida(pDataObj);
+    if (!cida)
+        return E_UNEXPECTED;

PCUIDLIST_ABSOLUTE pidlParent = HIDA_GetPIDLFolder(cida);
     if (!pidlParent)
diff --git a/dll/shellext/fontext/CFontMenu.cpp b/dll/shellext/fontext/CFontMenu.cpp
index 62464a099ee..fdd20bbd6ef 100644
--- a/dll/shellext/fontext/CFontMenu.cpp
+++ b/dll/shellext/fontext/CFontMenu.cpp
@@ -2,45 +2,13 @@
  * PROJECT:     ReactOS Font Shell Extension
  * LICENSE:     GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
  * PURPOSE:     CFontMenu implementation
- * COPYRIGHT:   Copyright 2019,2020 Mark Jansen [e-mail]
+ * COPYRIGHT:   Copyright 2019-2021 Mark Jansen [e-mail]
  */

#include "precomp.h"

WINE_DEFAULT_DEBUG_CHANNEL(fontext);

-static CLIPFORMAT g_cfHIDA;
-
-HRESULT _GetCidlFromDataObject(IDataObject *pDataObject, CIDA** ppcida)
-{
-    if (g_cfHIDA == NULL)
-    {
-        g_cfHIDA = (CLIPFORMAT)RegisterClipboardFormatW(CFSTR_SHELLIDLIST);
-    }
-
-    FORMATETC fmt = { g_cfHIDA, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
-    STGMEDIUM medium;
-
-    HRESULT hr = pDataObject->GetData(&fmt, &medium);
-    if (FAILED_UNEXPECTEDLY(hr))
-        return hr;
-
-    LPVOID lpSrc = GlobalLock(medium.hGlobal);
-    SIZE_T cbSize = GlobalSize(medium.hGlobal);
-
-    *ppcida = (CIDA *)::CoTaskMemAlloc(cbSize);
-    if (*ppcida)
-    {
-        memcpy(*ppcida, lpSrc, cbSize);
-        hr = S_OK;
-    }
-    else
-    {
-        hr = E_FAIL;
-    }
-    ReleaseStgMedium(&medium);
-    return hr;
-}

const char* DFM_TO_STR(UINT uMsg)
 {
@@ -111,10 +79,10 @@ static HRESULT CALLBACK FontFolderMenuCallback(IShellFolder *psf, HWND hwnd, IDa
         // Preview is the only item we handle
         if (wParam == 0)
         {
-            CComHeapPtr<CIDA> cida;
-            HRESULT hr = _GetCidlFromDataObject(pdtobj, &cida);
-            if (FAILED_UNEXPECTEDLY(hr))
-                return hr;
+            CDataObjectHIDA cida(pdtobj);
+
+            if (FAILED_UNEXPECTEDLY(cida.hr()))
+                return cida.hr();

for (UINT n = 0; n < cida->cidl; ++n)
             {
diff --git a/dll/shellext/fontext/precomp.h b/dll/shellext/fontext/precomp.h
index 8037e4cd064..2e46032986d 100644
--- a/dll/shellext/fontext/precomp.h
+++ b/dll/shellext/fontext/precomp.h
@@ -36,8 +36,6 @@ HRESULT _CFontMenu_CreateInstance(HWND hwnd, UINT cidl, PCUITEMID_CHILD_ARRAY ap
 HRESULT _CDataObject_CreateInstance(PCIDLIST_ABSOLUTE folder, UINT cidl, PCUITEMID_CHILD_ARRAY apidl,
                                     REFIID riid, LPVOID* ppvOut);

-HRESULT _GetCidlFromDataObject(IDataObject *pDataObject, CIDA** ppcida);
-
 inline BOOL IsFontDotExt(LPCWSTR pchDotExt)
 {
     static const LPCWSTR array[] =