[PATCH 4/7] shell32: Add a get_data_format() helper.

[Zebediah Figura]

From: Zebediah Figura

Make the logic in do_paste() a bit more idiomatic.
---
 dlls/shell32/shlview_cmenu.c | 66 +++++++++++++++++-------------------
 1 file changed, 32 insertions(+), 34 deletions(-)

diff --git a/dlls/shell32/shlview_cmenu.c b/dlls/shell32/shlview_cmenu.c
index e00306ee2a9..6951bbd4216 100644
--- a/dlls/shell32/shlview_cmenu.c
+++ b/dlls/shell32/shlview_cmenu.c
@@ -358,20 +358,24 @@ static HRESULT paste_pidls(ContextMenu *menu, ITEMIDLIST **pidls, unsigned int c
     return hr;
 }

+static HRESULT get_data_format(IDataObject *data, UINT cf, STGMEDIUM *medium)
+{
+    FORMATETC format;
+
+    InitFormatEtc(format, cf, TYMED_HGLOBAL);
+    return IDataObject_GetData(data, &format, medium);
+}
+
 static HRESULT do_paste(ContextMenu *menu)
 {
     IDataObject *data;
     HRESULT hr;
     STGMEDIUM medium;
-    FORMATETC formatetc;
-    HRESULT format_hr;

if (FAILED(hr = OleGetClipboard(&data)))
         return hr;

-    InitFormatEtc(formatetc, RegisterClipboardFormatW(CFSTR_SHELLIDLISTW), TYMED_HGLOBAL);
-    format_hr = IDataObject_GetData(data, &formatetc, &medium);
-    if (SUCCEEDED(format_hr))
+    if (SUCCEEDED(get_data_format(data, RegisterClipboardFormatW(CFSTR_SHELLIDLISTW), &medium)))
     {
         CIDA *cida = GlobalLock(medium.hGlobal);
         ITEMIDLIST **pidls;
@@ -398,45 +402,39 @@ static HRESULT do_paste(ContextMenu *menu)
         }
         ReleaseStgMedium(&medium);
     }
-    else
+    else if (SUCCEEDED(get_data_format(data, CF_HDROP, &medium)))
     {
-        InitFormatEtc(formatetc, CF_HDROP, TYMED_HGLOBAL);
-        format_hr = IDataObject_GetData(data, &formatetc, &medium);
-        if (SUCCEEDED(format_hr))
-        {
-            WCHAR path[MAX_PATH];
-            ITEMIDLIST **pidls;
-            UINT count;
+        WCHAR path[MAX_PATH];
+        ITEMIDLIST **pidls;
+        UINT count;

-            count = DragQueryFileW(medium.hGlobal, -1, NULL, 0);
-            pidls = SHAlloc(count * sizeof(ITEMIDLIST*));
-            if (pidls)
+        count = DragQueryFileW(medium.hGlobal, -1, NULL, 0);
+        pidls = SHAlloc(count * sizeof(ITEMIDLIST*));
+        if (pidls)
+        {
+            for (unsigned int i = 0; i < count; i++)
             {
-                for (unsigned int i = 0; i < count; i++)
+                DragQueryFileW(medium.hGlobal, i, path, ARRAY_SIZE(path));
+                if (!(pidls[i] = ILCreateFromPathW(path)))
                 {
-                    DragQueryFileW(medium.hGlobal, i, path, ARRAY_SIZE(path));
-                    if (!(pidls[i] = ILCreateFromPathW(path)))
-                    {
-                        hr = E_FAIL;
-                        break;
-                    }
+                    hr = E_FAIL;
+                    break;
                 }
-                if (SUCCEEDED(hr))
-                    hr = paste_pidls(menu, pidls, count);
-                _ILFreeaPidl(pidls, count);
             }
-            else
-            {
-                hr = HRESULT_FROM_WIN32(GetLastError());
-            }
-            ReleaseStgMedium(&medium);
+            if (SUCCEEDED(hr))
+                hr = paste_pidls(menu, pidls, count);
+            _ILFreeaPidl(pidls, count);
+        }
+        else
+        {
+            hr = HRESULT_FROM_WIN32(GetLastError());
         }
+        ReleaseStgMedium(&medium);
     }
-
-    if (FAILED(format_hr))
+    else
     {
         ERR("Cannot paste any clipboard formats.\n");
-        hr = format_hr;
+        hr = E_FAIL;
     }

IDataObject_Release(data);