ui/shell_dialogs/gtk/select_file_dialog_impl.h

   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 //
   5 // This file implements common select dialog functionality between GTK and KDE.
   6
   7 #ifndef UI_SHELL_DIALOGS_GTK_SELECT_FILE_DIALOG_IMPL_H_
   8 #define UI_SHELL_DIALOGS_GTK_SELECT_FILE_DIALOG_IMPL_H_
   9
  10 #include <set>
  11
  12 #include "base/compiler_specific.h"
  13 #include "base/nix/xdg_util.h"
  14 #include "ui/shell_dialogs/select_file_dialog.h"
  15
  16 namespace ui {
  17
  18 // Shared implementation SelectFileDialog used by SelectFileDialogImplGTK
  19 class SelectFileDialogImpl : public SelectFileDialog {
  20  public:
  21   // Factory method for creating a GTK-styled SelectFileDialogImpl
  22   static SelectFileDialogImpl* NewSelectFileDialogImplGTK(
  23       Listener* listener,
  24       ui::SelectFilePolicy* policy);
  25   // Factory method for creating a KDE-styled SelectFileDialogImpl
  26   static SelectFileDialogImpl* NewSelectFileDialogImplKDE(
  27       Listener* listener,
  28       ui::SelectFilePolicy* policy,
  29       base::nix::DesktopEnvironment desktop);
  30
  31   // Returns true if the SelectFileDialog class returned by
  32   // NewSelectFileDialogImplKDE will actually work.
  33   static bool CheckKDEDialogWorksOnUIThread();
  34
  35   // BaseShellDialog implementation.
  36   virtual bool IsRunning(gfx::NativeWindow parent_window) const OVERRIDE;
  37   virtual void ListenerDestroyed() OVERRIDE;
  38
  39  protected:
  40   explicit SelectFileDialogImpl(Listener* listener,
  41                                 ui::SelectFilePolicy* policy);
  42   virtual ~SelectFileDialogImpl();
  43
  44   // SelectFileDialog implementation.
  45   // |params| is user data we pass back via the Listener interface.
  46   virtual void SelectFileImpl(
  47       Type type,
  48       const string16& title,
  49       const base::FilePath& default_path,
  50       const FileTypeInfo* file_types,
  51       int file_type_index,
  52       const base::FilePath::StringType& default_extension,
  53       gfx::NativeWindow owning_window,
  54       void* params) = 0;
  55
  56   // Wrapper for file_util::DirectoryExists() that allow access on the UI
  57   // thread. Use this only in the file dialog functions, where it's ok
  58   // because the file dialog has to do many stats anyway. One more won't
  59   // hurt too badly and it's likely already cached.
  60   bool CallDirectoryExistsOnUIThread(const base::FilePath& path);
  61
  62   // The file filters.
  63   FileTypeInfo file_types_;
  64
  65   // The index of the default selected file filter.
  66   // Note: This starts from 1, not 0.
  67   size_t file_type_index_;
  68
  69   // The set of all parent windows for which we are currently running dialogs.
  70   std::set<GtkWindow*> parents_;
  71
  72   // The type of dialog we are showing the user.
  73   Type type_;
  74
  75   // These two variables track where the user last saved a file or opened a
  76   // file so that we can display future dialogs with the same starting path.
  77   static base::FilePath* last_saved_path_;
  78   static base::FilePath* last_opened_path_;
  79
  80   DISALLOW_COPY_AND_ASSIGN(SelectFileDialogImpl);
  81 };
  82
  83 SelectFileDialog* CreateLinuxSelectFileDialog(
  84     SelectFileDialog::Listener* listener,
  85     SelectFilePolicy* policy);
  86
  87 }  // namespace ui
  88
  89 #endif  // UI_SHELL_DIALOGS_GTK_SELECT_FILE_DIALOG_IMPL_H_