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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 #include "ash/desktop_background/user_wallpaper_delegate.h" | |
6 | |
7 #include "ash/desktop_background/desktop_background_controller.h" | |
8 #include "ash/shell.h" | |
9 #include "ash/wm/window_animations.h" | |
10 #include "base/basictypes.h" | |
11 #include "ui/gfx/image/image_skia.h" | |
12 | |
13 namespace { | |
14 | |
15 const char kBackgroundRed = 70; | |
16 const char kBackgroundGreen = 70; | |
17 const char kBackgroundBlue = 78; | |
18 | |
19 class UserWallpaperDelegate : public ash::UserWallpaperDelegate { | |
20 public: | |
21 UserWallpaperDelegate() { | |
22 } | |
23 | |
24 virtual ~UserWallpaperDelegate() { | |
25 } | |
26 | |
27 virtual int GetAnimationType() OVERRIDE { | |
28 return ShouldShowInitialAnimation() ? | |
29 ash::WINDOW_VISIBILITY_ANIMATION_TYPE_BRIGHTNESS_GRAYSCALE : | |
30 static_cast<int>(wm::WINDOW_VISIBILITY_ANIMATION_TYPE_FADE); | |
31 } | |
32 | |
33 virtual bool ShouldShowInitialAnimation() OVERRIDE { | |
34 return true; | |
35 } | |
36 | |
37 virtual int GetAnimationDurationOverride() OVERRIDE { | |
38 // Return 0 to select the default. | |
39 return 0; | |
40 } | |
41 | |
42 virtual void SetAnimationDurationOverride( | |
43 int animation_duration_in_ms) OVERRIDE { | |
44 NOTIMPLEMENTED(); | |
45 } | |
46 | |
47 virtual void UpdateWallpaper(bool clear_cache) OVERRIDE { | |
48 SkBitmap bitmap; | |
49 bitmap.setConfig(SkBitmap::kARGB_8888_Config, 16, 16); | |
50 bitmap.allocPixels(); | |
51 bitmap.eraseARGB(255, kBackgroundRed, kBackgroundGreen, kBackgroundBlue); | |
52 #if !defined(NDEBUG) | |
53 // In debug builds we generate a simple pattern that allows visually | |
54 // notice if transparency is broken. | |
55 { | |
56 SkAutoLockPixels alp(bitmap); | |
57 *bitmap.getAddr32(0,0) = SkColorSetRGB(0, 0, 0); | |
58 } | |
59 #endif | |
60 gfx::ImageSkia wallpaper = gfx::ImageSkia::CreateFrom1xBitmap(bitmap); | |
61 ash::Shell::GetInstance() | |
62 ->desktop_background_controller() | |
63 ->SetWallpaperImage(wallpaper, ash::WALLPAPER_LAYOUT_TILE); | |
64 } | |
65 | |
66 virtual void InitializeWallpaper() OVERRIDE { | |
67 UpdateWallpaper(false); | |
68 } | |
69 | |
70 virtual void OpenSetWallpaperPage() OVERRIDE { | |
71 } | |
72 | |
73 virtual bool CanOpenSetWallpaperPage() OVERRIDE { | |
74 return false; | |
75 } | |
76 | |
77 virtual void OnWallpaperAnimationFinished() OVERRIDE { | |
78 } | |
79 | |
80 virtual void OnWallpaperBootAnimationFinished() OVERRIDE { | |
81 } | |
82 | |
83 private: | |
84 DISALLOW_COPY_AND_ASSIGN(UserWallpaperDelegate); | |
85 }; | |
86 | |
87 } // namespace | |
88 | |
89 ash::UserWallpaperDelegate* CreateUserWallpaperDelegate() { | |
90 return new UserWallpaperDelegate(); | |
91 } | |
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