src/chrome/browser/chrome_select_file_dialog_factory_win.h

   1 // Copyright 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 CHROME_BROWSER_CHROME_SELECT_FILE_DIALOG_FACTORY_WIN_H_
   6 #define CHROME_BROWSER_CHROME_SELECT_FILE_DIALOG_FACTORY_WIN_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "base/macros.h"
  10 #include "base/memory/ref_counted.h"
  11 #include "ui/shell_dialogs/select_file_dialog_factory.h"
  12
  13 namespace base {
  14 class SequencedTaskRunner;
  15 }  // namespace base
  16
  17 // Implements a Select File dialog that delegates to a Metro file picker on
  18 // Metro and to a utility process otherwise. The utility process is used in
  19 // order to isolate the Chrome browser process from potential instability
  20 // caused by Shell extension modules loaded by GetOpenFileName.
  21 class ChromeSelectFileDialogFactory : public ui::SelectFileDialogFactory {
  22  public:
  23   // Uses |blocking_task_runner| to perform IPC with the utility process.
  24   explicit ChromeSelectFileDialogFactory(
  25       const scoped_refptr<base::SequencedTaskRunner>& blocking_task_runner);
  26   virtual ~ChromeSelectFileDialogFactory();
  27
  28   // ui::SelectFileDialogFactory implementation
  29   virtual ui::SelectFileDialog* Create(ui::SelectFileDialog::Listener* listener,
  30                                        ui::SelectFilePolicy* policy) override;
  31
  32  private:
  33   scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
  34
  35   DISALLOW_COPY_AND_ASSIGN(ChromeSelectFileDialogFactory);
  36 };
  37
  38 #endif  // CHROME_BROWSER_CHROME_SELECT_FILE_DIALOG_FACTORY_WIN_H_