| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| #ifndef PACKAGES_FILE_SELECTOR_FILE_SELECTOR_WINDOWS_WINDOWS_FILE_DIALOG_CONTROLLER_H_ |
| #define PACKAGES_FILE_SELECTOR_FILE_SELECTOR_WINDOWS_WINDOWS_FILE_DIALOG_CONTROLLER_H_ |
| |
| #include <comdef.h> |
| #include <comip.h> |
| #include <shobjidl.h> |
| #include <windows.h> |
| |
| #include <memory> |
| |
| _COM_SMARTPTR_TYPEDEF(IFileDialog, IID_IFileDialog); |
| |
| namespace file_selector_windows { |
| |
| // A thin wrapper for IFileDialog to allow for faking and inspection in tests. |
| // |
| // Since this class defines the end of what can be unit tested, it should |
| // contain as little logic as possible. |
| class FileDialogController { |
| public: |
| // Creates a controller managing |dialog|. |
| FileDialogController(IFileDialog* dialog); |
| virtual ~FileDialogController(); |
| |
| // Disallow copy and assign. |
| FileDialogController(const FileDialogController&) = delete; |
| FileDialogController& operator=(const FileDialogController&) = delete; |
| |
| // IFileDialog wrappers: |
| virtual HRESULT SetDefaultFolder(IShellItem* folder); |
| virtual HRESULT SetFileName(const wchar_t* name); |
| virtual HRESULT SetFileTypes(UINT count, COMDLG_FILTERSPEC* filters); |
| virtual HRESULT SetOkButtonLabel(const wchar_t* text); |
| virtual HRESULT GetOptions(FILEOPENDIALOGOPTIONS* out_options) const; |
| virtual HRESULT SetOptions(FILEOPENDIALOGOPTIONS options); |
| virtual HRESULT Show(HWND parent); |
| virtual HRESULT GetResult(IShellItem** out_item) const; |
| |
| // IFileOpenDialog wrapper. This will fail if the IFileDialog* provided to the |
| // constructor was not an IFileOpenDialog instance. |
| virtual HRESULT GetResults(IShellItemArray** out_items) const; |
| |
| private: |
| IFileDialogPtr dialog_ = nullptr; |
| }; |
| |
| // Interface for creating FileDialogControllers, to allow for dependency |
| // injection. |
| class FileDialogControllerFactory { |
| public: |
| virtual ~FileDialogControllerFactory(); |
| |
| virtual std::unique_ptr<FileDialogController> CreateController( |
| IFileDialog* dialog) const = 0; |
| }; |
| |
| } // namespace file_selector_windows |
| |
| #endif // PACKAGES_FILE_SELECTOR_FILE_SELECTOR_WINDOWS_WINDOWS_FILE_DIALOG_CONTROLLER_H_ |