1// Copyright (c) 2012 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 PRINTING_PRINT_DIALOG_GTK_INTERFACE_H_
6#define PRINTING_PRINT_DIALOG_GTK_INTERFACE_H_
7
8#include "base/strings/string16.h"
9#include "printing/printing_context_linux.h"
10#include "ui/gfx/native_widget_types.h"
11
12namespace printing {
13
14class MetafilePlayer;
15class PrintSettings;
16
17// An interface for GTK printing dialogs. Classes that live outside of
18// printing/ can implement this interface and get threading requirements
19// correct without exposing those requirements to printing/.
20class PrintDialogGtkInterface {
21 public:
22  // Tell the dialog to use the default print setting.
23  virtual void UseDefaultSettings() = 0;
24
25  // Updates the dialog to use |settings|. Only used when printing without the
26  // system print dialog. E.g. for Print Preview. Returns false on error.
27  virtual bool UpdateSettings(PrintSettings* settings) = 0;
28
29  // Shows the dialog and handles the response with |callback|. Only used when
30  // printing with the native print dialog.
31  virtual void ShowDialog(
32      gfx::NativeView parent_view,
33      bool has_selection,
34      const PrintingContextLinux::PrintSettingsCallback& callback) = 0;
35
36  // Prints the document named |document_name| contained in |metafile|.
37  // Called from the print worker thread. Once called, the
38  // PrintDialogGtkInterface instance should not be reused.
39  virtual void PrintDocument(const MetafilePlayer& metafile,
40                             const base::string16& document_name) = 0;
41
42  // Same as AddRef/Release, but with different names since
43  // PrintDialogGtkInterface does not inherit from RefCounted.
44  virtual void AddRefToDialog() = 0;
45  virtual void ReleaseDialog() = 0;
46
47 protected:
48  virtual ~PrintDialogGtkInterface() {}
49};
50
51}  // namespace printing
52
53#endif  // PRINTING_PRINT_DIALOG_GTK_INTERFACE_H_
54