1 files changed, 52 insertions, 0 deletions
diff --git a/widget/windows/filedialog/WinFileDialogChild.h b/widget/windows/filedialog/WinFileDialogChild.h
new file mode 100644
index 0000000000..b0939ce2ed
--- /dev/null
+++ b/widget/windows/filedialog/WinFileDialogChild.h
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef widget_windows_filedialog_WinFileDialogChild_h__
+#define widget_windows_filedialog_WinFileDialogChild_h__
+
+#include "mozilla/widget/filedialog/PWinFileDialogChild.h"
+
+// forward declaration of native Windows interface-struct
+struct IFileDialog;
+
+namespace mozilla::widget::filedialog {
+
+class WinFileDialogChild : public PWinFileDialogChild {
+ public:
+  using Command = mozilla::widget::filedialog::Command;
+  using IPCResult = mozilla::ipc::IPCResult;
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(WinFileDialogChild, override);
+
+  WinFileDialogChild();
+
+ public:
+  using FileResolver = PWinFileDialogChild::ShowFileDialogResolver;
+  IPCResult RecvShowFileDialog(uintptr_t parentHwnd, FileDialogType,
+                               nsTArray<Command>, FileResolver&&);
+
+  using FolderResolver = PWinFileDialogChild::ShowFolderDialogResolver;
+  IPCResult RecvShowFolderDialog(uintptr_t parentHwnd, nsTArray<Command>,
+                                 FolderResolver&&);
+
+ private:
+  ~WinFileDialogChild();
+
+  void ProcessingError(Result aCode, const char* aReason) override;
+
+  // Defined and used only in WinFileDialogChild.cpp.
+  template <size_t N>
+  IPCResult MakeIpcFailure(HRESULT hr, const char (&what)[N]);
+
+  // This flag properly _should_ be static (_i.e._, per-process) rather than
+  // per-instance; but we can't presently instantiate two separate utility
+  // processes with the same sandbox type, so we have to reuse the existing
+  // utility process if there is one.
+  bool mUsed = false;
+};
+
+}  // namespace mozilla::widget::filedialog
+
+#endif  // widget_windows_filedialog_WinFileDialogChild_h__