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1 // Copyright 2015 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 "extensions/browser/extension_icon_placeholder.h" | |
6 | |
7 #include "base/strings/string_util.h" | |
8 #include "base/strings/utf_string_conversions.h" | |
9 #include "extensions/grit/extensions_browser_resources.h" | |
10 #include "ui/base/resource/resource_bundle.h" | |
11 #include "ui/gfx/canvas.h" | |
12 #include "ui/gfx/codec/png_codec.h" | |
13 #include "ui/gfx/geometry/rect.h" | |
14 #include "ui/gfx/geometry/size.h" | |
15 #include "ui/gfx/image/canvas_image_source.h" | |
16 #include "ui/gfx/image/image_skia.h" | |
17 | |
18 namespace extensions { | |
19 | |
20 namespace { | |
21 | |
22 // Returns the FontStyle to use for the given icon |size|. | |
23 ui::ResourceBundle::FontStyle GetFontStyleForIconSize( | |
24 extension_misc::ExtensionIcons size) { | |
25 switch (size) { | |
26 case extension_misc::EXTENSION_ICON_INVALID: | |
27 case extension_misc::EXTENSION_ICON_BITTY: | |
28 return ui::ResourceBundle::SmallFont; | |
29 case extension_misc::EXTENSION_ICON_ACTION: | |
30 case extension_misc::EXTENSION_ICON_SMALLISH: | |
31 case extension_misc::EXTENSION_ICON_SMALL: | |
32 return ui::ResourceBundle::MediumFont; | |
33 case extension_misc::EXTENSION_ICON_MEDIUM: | |
34 case extension_misc::EXTENSION_ICON_LARGE: | |
35 case extension_misc::EXTENSION_ICON_EXTRA_LARGE: | |
36 case extension_misc::EXTENSION_ICON_GIGANTOR: | |
37 return ui::ResourceBundle::LargeFont; | |
38 } | |
39 NOTREACHED(); | |
40 return ui::ResourceBundle::MediumFont; | |
41 } | |
42 | |
43 // Returns the background image to use for the given icon |size|. | |
44 gfx::Image GetBackgroundImageForIconSize(extension_misc::ExtensionIcons size) { | |
45 int resource_id = 0; | |
46 // Right now, we have resources for a 19x19 (action) and a 48x48 (extensions | |
47 // page icon). The implementation of the placeholder scales these correctly, | |
48 // so it's not a big deal to use these for other sizes, but if it's something | |
49 // that will be done frequently, we should probably make a devoted assest for | |
Finnur
2015/05/13 15:46:37
nit: s/assest/asset/
Devlin
2015/05/14 20:23:48
Done.
| |
50 // that size. | |
51 switch (size) { | |
52 case extension_misc::EXTENSION_ICON_INVALID: | |
53 case extension_misc::EXTENSION_ICON_BITTY: | |
54 case extension_misc::EXTENSION_ICON_ACTION: | |
55 case extension_misc::EXTENSION_ICON_SMALLISH: | |
56 case extension_misc::EXTENSION_ICON_SMALL: | |
57 resource_id = IDR_EXTENSION_ANONYMOUS_ACTION_BACKGROUND; | |
Finnur
2015/05/13 15:46:37
nit: This naming bugs me a bit. It's not for a bac
Devlin
2015/05/14 20:23:48
Yeah, that sounds better. :) Done.
| |
58 break; | |
59 case extension_misc::EXTENSION_ICON_MEDIUM: | |
60 case extension_misc::EXTENSION_ICON_LARGE: | |
61 case extension_misc::EXTENSION_ICON_EXTRA_LARGE: | |
62 case extension_misc::EXTENSION_ICON_GIGANTOR: | |
63 resource_id = IDR_EXTENSION_ANONYMOUS_ICON_BACKGROUND; | |
64 break; | |
65 } | |
66 return ui::ResourceBundle::GetSharedInstance().GetImageNamed(resource_id); | |
67 } | |
68 | |
69 } // namespace | |
70 | |
71 ExtensionIconPlaceholder::ExtensionIconPlaceholder( | |
72 extension_misc::ExtensionIcons size, | |
73 const std::string& letter) | |
74 : gfx::CanvasImageSource(gfx::Size(size, size), false), | |
75 icon_size_(size), | |
76 letter_(StringToUpperASCII(base::UTF8ToUTF16(letter.substr(0, 1)))), | |
Finnur
2015/05/13 15:46:37
Does this work well (considering localization)?
Devlin
2015/05/14 20:23:48
Good catch. Probably not. Moving to ASCII at all
| |
77 base_image_(GetBackgroundImageForIconSize(size)) { | |
78 } | |
79 | |
80 ExtensionIconPlaceholder::~ExtensionIconPlaceholder() { | |
81 } | |
82 | |
83 gfx::Image ExtensionIconPlaceholder::CreateImage( | |
84 extension_misc::ExtensionIcons size, | |
85 const std::string& name) { | |
86 return gfx::Image(gfx::ImageSkia(new ExtensionIconPlaceholder(size, name), | |
87 gfx::Size(size, size))); | |
88 } | |
89 | |
90 void ExtensionIconPlaceholder::Draw(gfx::Canvas* canvas) { | |
91 // Draw the background image, correctly scaled. | |
92 canvas->DrawImageInt(*base_image_.ToImageSkia(), 0, 0, | |
93 base_image_.Size().width(), base_image_.Size().height(), | |
94 0, 0, size().width(), size().height(), true); | |
95 gfx::Rect bounds(size().width(), size().height()); | |
96 // Draw the letter on top. | |
97 canvas->DrawStringRectWithFlags( | |
98 letter_, ui::ResourceBundle::GetSharedInstance().GetFontList( | |
99 GetFontStyleForIconSize(icon_size_)), | |
100 SK_ColorWHITE, bounds, gfx::Canvas::TEXT_ALIGN_CENTER); | |
101 } | |
102 | |
103 } // namespace extensions | |
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