scrrun: Implement IFileSystem3 FolderExists.

dlls/scrrun/filesystem.c

@@ -223,12 +223,17 @@ static HRESULT WINAPI filesys_FileExists(IFileSystem3 *iface, BSTR path, VARIANT
     return S_OK;
 }
 
-static HRESULT WINAPI filesys_FolderExists(IFileSystem3 *iface, BSTR FolderSpec,
-                                            VARIANT_BOOL *pfExists)
+static HRESULT WINAPI filesys_FolderExists(IFileSystem3 *iface, BSTR path, VARIANT_BOOL *ret)
 {
-    FIXME("%p %s %p\n", iface, debugstr_w(FolderSpec), pfExists);
+    DWORD attrs;
+    TRACE("%p %s %p\n", iface, debugstr_w(path), ret);
 
-    return E_NOTIMPL;
+    if (!ret) return E_POINTER;
+
+    attrs = GetFileAttributesW(path);
+    *ret = attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY) ? VARIANT_TRUE : VARIANT_FALSE;
+
+    return S_OK;
 }
 
 static HRESULT WINAPI filesys_GetDrive(IFileSystem3 *iface, BSTR DriveSpec,

dlls/scrrun/tests/filesystem.c

@@ -33,6 +33,10 @@
 static void test_interfaces(void)
 {
     static const WCHAR pathW[] = {'p','a','t','h',0};
+    static const WCHAR nonexistent_dirW[] = {
+        'c', ':', '\\', 'N', 'o', 'n', 'e', 'x', 'i', 's', 't', 'e', 'n', 't', 0};
+    static const WCHAR file_kernel32W[] = {
+        '\\', 'k', 'e', 'r', 'n', 'e', 'l', '3', '2', '.', 'd', 'l', 'l', 0};
     HRESULT hr;
     IDispatch *disp;
     IDispatchEx *dispex;
@@ -40,6 +44,8 @@ static void test_interfaces(void)
     IObjectWithSite *site;
     VARIANT_BOOL b;
     BSTR path;
+    WCHAR windows_path[MAX_PATH];
+    WCHAR file_path[MAX_PATH];
 
     hr = CoCreateInstance(&CLSID_FileSystemObject, NULL, CLSCTX_INPROC_SERVER|CLSCTX_INPROC_HANDLER,
             &IID_IDispatch, (void**)&disp);
@@ -48,6 +54,10 @@ static void test_interfaces(void)
         return;
     }
 
+    GetSystemDirectoryW(windows_path, MAX_PATH);
+    lstrcpyW(file_path, windows_path);
+    lstrcatW(file_path, file_kernel32W);
+
     hr = IDispatch_QueryInterface(disp, &IID_IFileSystem3, (void**)&fs3);
     ok(hr == S_OK, "got 0x%08x, expected 0x%08x\n", hr, S_OK);
 
@@ -72,6 +82,28 @@ static void test_interfaces(void)
     ok(b == VARIANT_FALSE, "got %x\n", b);
     SysFreeString(path);
 
+    /* Folder Exists */
+    hr = IFileSystem3_FolderExists(fs3, NULL, NULL);
+    ok(hr == E_POINTER, "got 0x%08x, expected 0x%08x\n", hr, E_POINTER);
+
+    path = SysAllocString(windows_path);
+    hr = IFileSystem3_FolderExists(fs3, path, &b);
+    ok(hr == S_OK, "got 0x%08x, expected 0x%08x\n", hr, S_OK);
+    ok(b == VARIANT_TRUE, "Folder doesn't exists\n");
+    SysFreeString(path);
+
+    path = SysAllocString(nonexistent_dirW);
+    hr = IFileSystem3_FolderExists(fs3, path, &b);
+    ok(hr == S_OK, "got 0x%08x, expected 0x%08x\n", hr, S_OK);
+    ok(b == VARIANT_FALSE, "Folder exists\n");
+    SysFreeString(path);
+
+    path = SysAllocString(file_path);
+    hr = IFileSystem3_FolderExists(fs3, path, &b);
+    ok(hr == S_OK, "got 0x%08x, expected 0x%08x\n", hr, S_OK);
+    ok(b == VARIANT_FALSE, "Folder exists\n");
+    SysFreeString(path);
+
     IFileSystem3_Release(fs3);
     IDispatch_Release(disp);
 }