Revert 230235 "Use BaseShellDialog for print dialog on Windows"

trunk/src/ui/shell_dialogs/print_settings_dialog_win.h

-// Copyright 2013 The Chromium 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 UI_SHELL_DIALOGS_PRINT_SETTINGS_DIALOG_WIN_H_
-#define UI_SHELL_DIALOGS_PRINT_SETTINGS_DIALOG_WIN_H_
-
-#include <ocidl.h>
-#include <commdlg.h>
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop.h"
-#include "base/message_loop/message_loop_proxy.h"
-#include "ui/shell_dialogs/base_shell_dialog_win.h"
-#include "ui/shell_dialogs/shell_dialogs_export.h"
-
-namespace ui {
-
-// A thin wrapper around the native window print dialog that uses
-// BaseShellDialog to have the dialog run on a background thread.
-class SHELL_DIALOGS_EXPORT PrintSettingsDialogWin
-    : public base::RefCountedThreadSafe<PrintSettingsDialogWin>,
-      public BaseShellDialogImpl {
- public:
-  class SHELL_DIALOGS_EXPORT Observer {
-   public:
-    virtual void PrintSettingsConfirmed(PRINTDLGEX* dialog_options) = 0;
-    virtual void PrintSettingsCancelled(PRINTDLGEX* dialog_options) = 0;
-  };
-  typedef HRESULT(__stdcall* PrintDialogFunc)(PRINTDLGEX*);
-
-  explicit PrintSettingsDialogWin(Observer* observer);
-  virtual ~PrintSettingsDialogWin();
-
-  // Called to open the system print dialog on a background thread.
-  // |print_dialog_func| should generally be ::PrintDlgEx, however alternate
-  // functions are used for testing. |owning_window| is the parent HWND, and
-  // |dialog_options| is passed to |print_dialog_func|.
-  void GetPrintSettings(
-      PrintDialogFunc print_dialog_func,
-      HWND owning_window,
-      PRINTDLGEX* dialog_options);
-
- private:
-  // A struct for holding all the state necessary for displaying the print
-  // settings dialog.
-  struct ExecutePrintSettingsParams {
-    ExecutePrintSettingsParams(RunState run_state,
-                               HWND owner,
-                               PrintDialogFunc print_dialog_func,
-                               PRINTDLGEX* dialog_options)
-        : run_state(run_state),
-          owner(owner),
-          print_dialog_func(print_dialog_func),
-          dialog_options(dialog_options),
-          ui_proxy(base::MessageLoopForUI::current()->message_loop_proxy()) {}
-
-    RunState run_state;
-    HWND owner;
-    PrintDialogFunc print_dialog_func;
-    PRINTDLGEX* dialog_options;
-    scoped_refptr<base::MessageLoopProxy> ui_proxy;
-  };
-
-  // Runs the print dialog. Should be run on the the BaseShellDialogImpl thread.
-  // Posts back to PrintSettingsCompleted on the UI thread on completion.
-  void ExecutePrintSettings(const ExecutePrintSettingsParams& params);
-
-  // Handler for the result of the print settings dialog. Should be run on the
-  // UI thread, and notifies the observer of the result of the dialog.
-  void PrintSettingsCompleted(HRESULT hresult,
-                              const ExecutePrintSettingsParams& params);
-
-  // Observer that's notified when the dialog is confirmed or cancelled.
-  Observer* observer_;
-
-  DISALLOW_COPY_AND_ASSIGN(PrintSettingsDialogWin);
-};
-
-}  // namespace ui
-
-#endif  // UI_SHELL_DIALOGS_PRINT_SETTINGS_DIALOG_WIN_H_