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| 1 // Copyright (c) 2013 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 #ifndef CHROME_BROWSER_UI_METRO_DRIVER_FILE_PICKER_ASH_H_ |
| 5 #define CHROME_BROWSER_UI_METRO_DRIVER_FILE_PICKER_ASH_H_ |
| 6 |
| 7 #include <vector> |
| 8 |
| 9 #include "base/compiler_specific.h" |
| 10 #include "base/files/file_path.h" |
| 11 #include "base/macros.h" |
| 12 #include "base/strings/string16.h" |
| 13 |
| 14 class ChromeAppViewAsh; |
| 15 struct MetroViewerHostMsg_SaveAsDialogParams; |
| 16 |
| 17 namespace base { |
| 18 class FilePath; |
| 19 } |
| 20 |
| 21 // Base class for the file pickers. |
| 22 class FilePickerSessionBase { |
| 23 public: |
| 24 virtual ~FilePickerSessionBase(); |
| 25 |
| 26 // Runs the picker, returns true on success. |
| 27 bool Run(); |
| 28 |
| 29 const base::string16& result() const { return result_; } |
| 30 |
| 31 bool success() const { return success_; } |
| 32 |
| 33 protected: |
| 34 // Creates a file picker for open_file_name. |
| 35 FilePickerSessionBase(ChromeAppViewAsh* app_view, |
| 36 const base::string16& title, |
| 37 const base::string16& filter, |
| 38 const base::FilePath& default_path); |
| 39 |
| 40 // Creates, configures and starts a file picker. |
| 41 // If the HRESULT returned is a failure code the file picker has not started, |
| 42 // so no callbacks should be expected. |
| 43 virtual HRESULT StartFilePicker() = 0; |
| 44 |
| 45 // True iff a file picker has successfully finished. |
| 46 bool success_; |
| 47 |
| 48 // The title of the file picker. |
| 49 base::string16 title_; |
| 50 |
| 51 // The file type filter. |
| 52 base::string16 filter_; |
| 53 |
| 54 // The starting directory/file name. |
| 55 base::FilePath default_path_; |
| 56 |
| 57 // Pointer to the ChromeAppViewAsh instance. We notify the ChromeAppViewAsh |
| 58 // instance when the file open/save operations complete. |
| 59 ChromeAppViewAsh* app_view_; |
| 60 |
| 61 base::string16 result_; |
| 62 |
| 63 private: |
| 64 // Initiate a file picker, must be called on the main metro thread. |
| 65 // Returns true on success. |
| 66 bool DoFilePicker(); |
| 67 |
| 68 DISALLOW_COPY_AND_ASSIGN(FilePickerSessionBase); |
| 69 }; |
| 70 |
| 71 // Provides functionality to display the open file/multiple open file pickers |
| 72 // metro dialog. |
| 73 class OpenFilePickerSession : public FilePickerSessionBase { |
| 74 public: |
| 75 OpenFilePickerSession(ChromeAppViewAsh* app_view, |
| 76 const base::string16& title, |
| 77 const base::string16& filter, |
| 78 const base::FilePath& default_path, |
| 79 bool allow_multi_select); |
| 80 ~OpenFilePickerSession() override; |
| 81 |
| 82 const std::vector<base::FilePath>& filenames() const { |
| 83 return filenames_; |
| 84 } |
| 85 |
| 86 bool allow_multi_select() const { return allow_multi_select_; } |
| 87 |
| 88 private: |
| 89 HRESULT StartFilePicker() override; |
| 90 |
| 91 typedef winfoundtn::IAsyncOperation<winstorage::StorageFile*> |
| 92 SingleFileAsyncOp; |
| 93 typedef winfoundtn::Collections::IVectorView< |
| 94 winstorage::StorageFile*> StorageFileVectorCollection; |
| 95 typedef winfoundtn::IAsyncOperation<StorageFileVectorCollection*> |
| 96 MultiFileAsyncOp; |
| 97 |
| 98 // Called asynchronously when a single file picker is done. |
| 99 HRESULT SinglePickerDone(SingleFileAsyncOp* async, AsyncStatus status); |
| 100 |
| 101 // Called asynchronously when a multi file picker is done. |
| 102 HRESULT MultiPickerDone(MultiFileAsyncOp* async, AsyncStatus status); |
| 103 |
| 104 // Composes a multi-file result string suitable for returning to a |
| 105 // from a storage file collection. |
| 106 static HRESULT ComposeMultiFileResult(StorageFileVectorCollection* files, |
| 107 base::string16* result); |
| 108 |
| 109 // True if the multi file picker is to be displayed. |
| 110 bool allow_multi_select_; |
| 111 // If multi select is true then this member contains the list of filenames |
| 112 // to be returned back. |
| 113 std::vector<base::FilePath> filenames_; |
| 114 |
| 115 DISALLOW_COPY_AND_ASSIGN(OpenFilePickerSession); |
| 116 }; |
| 117 |
| 118 // Provides functionality to display the save file picker. |
| 119 class SaveFilePickerSession : public FilePickerSessionBase { |
| 120 public: |
| 121 SaveFilePickerSession(ChromeAppViewAsh* app_view, |
| 122 const MetroViewerHostMsg_SaveAsDialogParams& params); |
| 123 |
| 124 int filter_index() const; |
| 125 |
| 126 private: |
| 127 HRESULT StartFilePicker() override; |
| 128 |
| 129 typedef winfoundtn::IAsyncOperation<winstorage::StorageFile*> SaveFileAsyncOp; |
| 130 |
| 131 // Called asynchronously when the save file picker is done. |
| 132 HRESULT FilePickerDone(SaveFileAsyncOp* async, AsyncStatus status); |
| 133 |
| 134 int filter_index_; |
| 135 |
| 136 DISALLOW_COPY_AND_ASSIGN(SaveFilePickerSession); |
| 137 }; |
| 138 |
| 139 // Provides functionality to display the folder picker. |
| 140 class FolderPickerSession : public FilePickerSessionBase { |
| 141 public: |
| 142 FolderPickerSession(ChromeAppViewAsh* app_view, const base::string16& title); |
| 143 |
| 144 private: |
| 145 HRESULT StartFilePicker() override; |
| 146 |
| 147 typedef winfoundtn::IAsyncOperation<winstorage::StorageFolder*> |
| 148 FolderPickerAsyncOp; |
| 149 |
| 150 // Called asynchronously when the folder picker is done. |
| 151 HRESULT FolderPickerDone(FolderPickerAsyncOp* async, AsyncStatus status); |
| 152 |
| 153 DISALLOW_COPY_AND_ASSIGN(FolderPickerSession); |
| 154 }; |
| 155 |
| 156 #endif // CHROME_BROWSER_UI_METRO_DRIVER_FILE_PICKER_ASH_H_ |
| 157 |
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