1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_BASE_WIN_OPEN_FILE_NAME_WIN_H_ 6 #define UI_BASE_WIN_OPEN_FILE_NAME_WIN_H_ 7 8 #include <Windows.h> 9 #include <Commdlg.h> 10 11 #include <vector> 12 13 #include "base/macros.h" 14 #include "base/strings/string16.h" 15 #include "base/tuple.h" 16 #include "ui/base/ui_base_export.h" 17 18 namespace base { 19 class FilePath; 20 } // namespace base 21 22 namespace ui { 23 namespace win { 24 25 // Encapsulates an OPENFILENAME struct and related buffers. Also provides static 26 // methods for interpreting the properties of an OPENFILENAME. 27 class UI_BASE_EXPORT OpenFileName { 28 public: 29 // Initializes the OPENFILENAME, which may be accessed using Get(). All fields 30 // will be NULL except for |lStructSize|, |lpstrFile|, and |nMaxFile|. The 31 // file buffer will initially contain a null-terminated empty string. 32 OpenFileName(HWND parent_window, DWORD flags); 33 ~OpenFileName(); 34 35 // Initializes |lpstrFilter| from the label/pattern pairs in |filters|. 36 void SetFilters( 37 const std::vector<Tuple2<base::string16, base::string16> >& filters); 38 39 // Sets |lpstrInitialDir| and |lpstrFile|. 40 void SetInitialSelection(const base::FilePath& initial_directory, 41 const base::FilePath& initial_filename); 42 43 // The save as dialog on Windows XP remembers its last position, and if the 44 // screen resolution has changed it may be off screen. This method will check 45 // if we are running on XP and if so install a hook to reposition the dialog 46 // if necessary. 47 void MaybeInstallWindowPositionHookForSaveAsOnXP(); 48 49 // Returns the single selected file, or an empty path if there are more or 50 // less than one results. 51 base::FilePath GetSingleResult(); 52 53 // Returns the selected file or files. 54 void GetResult(base::FilePath* directory, 55 std::vector<base::FilePath>* filenames); 56 57 // Returns the OPENFILENAME structure. GetOPENFILENAME()58 OPENFILENAME* GetOPENFILENAME() { return &openfilename_; } 59 60 // Returns the OPENFILENAME structure. GetOPENFILENAME()61 const OPENFILENAME* GetOPENFILENAME() const { return &openfilename_; } 62 63 // Stores directory and filenames in the buffer pointed to by 64 // |openfilename->lpstrFile| and sized |openfilename->nMaxFile|. 65 static void SetResult(const base::FilePath& directory, 66 const std::vector<base::FilePath>& filenames, 67 OPENFILENAME* openfilename); 68 69 // Returns a vector of label/pattern pairs built from 70 // |openfilename->lpstrFilter|. 71 static std::vector<Tuple2<base::string16, base::string16> > GetFilters( 72 const OPENFILENAME* openfilename); 73 74 private: 75 OPENFILENAME openfilename_; 76 base::string16 initial_directory_buffer_; 77 wchar_t filename_buffer_[UNICODE_STRING_MAX_CHARS]; 78 base::string16 filter_buffer_; 79 80 DISALLOW_COPY_AND_ASSIGN(OpenFileName); 81 }; 82 83 } // namespace win 84 } // namespace ui 85 86 #endif // UI_BASE_WIN_OPEN_FILE_NAME_WIN_H_ 87