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Side by Side Diff: ash/desktop_background/desktop_background_controller.h

Issue 9580023: Enable user change background image in settings page in Aura build. (Closed) Base URL: http://git.chromium.org/git/chromium.git@trunk
Patch Set: Created 8 years, 9 months ago
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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 ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_CONTROLLER_H_
6 #define ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_CONTROLLER_H_
7 #pragma once
8
9 #include "ash/ash_export.h"
10 #include "base/basictypes.h"
11 #include "third_party/skia/include/core/SkBitmap.h"
tfarina 2012/03/12 17:07:28 nit: you can forward declare this.
bshe 2012/03/12 17:27:31 Done.
12
13 namespace ash {
14
15 // A class to listen for login and desktop background change events and set the
16 // corresponding default wallpaper in Aura shell.
17 class ASH_EXPORT DesktopBackgroundController {
18 public:
19 enum BackgroundMode {
20 BACKGROUND_IMAGE,
21 BACKGROUND_SOLID_COLOR
22 };
23
24 DesktopBackgroundController();
25 virtual ~DesktopBackgroundController();
26
27 // Get the desktop background mode.
28 BackgroundMode desktop_background_mode() const {
29 return desktop_background_mode_;
30 }
31
32 // Change the desktop background image to wallpaper with |index|.
33 void OnDesktopBackgroundChange(int index);
Ben Goodger (Google) 2012/03/12 16:34:30 Changed
bshe 2012/03/12 17:02:41 Done.
34
35 // Sets the desktop background to image mode and create a new background
36 // widget with |wallpaper|.
37 void SetDesktopBackgroundImageMode(const SkBitmap& wallpaper);
38
39 // Sets the desktop background to image mode and create a new background
40 // widget with default wallpaper.
41 void SetDefaultDesktopBackgroundImage();
42
43 // Sets the desktop background to image mode and create a new background
44 // widget with previous selected wallpaper at run time.
45 void SetPreviousDesktopBackgroundImage();
46
47 // Sets the desktop background to solid color mode and create a solid color
48 // layout.
49 void SetDesktopBackgroundSolidColorMode();
50
51 private:
52 // We need to cache the previously used wallpaper index. So when users switch
53 // desktop background color mode at run time, we can directly switch back to
54 // the user selected wallpaper in image mode.
55 int previous_wallpaper_index_;
56
57 // Can change at runtime.
58 BackgroundMode desktop_background_mode_;
59
60 DISALLOW_COPY_AND_ASSIGN(DesktopBackgroundController);
61 };
62
63 } // namespace ash
64
65 #endif // ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_CONTROLLER_H_
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