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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 #ifndef EXTENSIONS_BROWSER_EXTENSION_ICON_PLACEHOLDER_H_ |
| 6 #define EXTENSIONS_BROWSER_EXTENSION_ICON_PLACEHOLDER_H_ |
| 7 |
| 8 #include <string> |
| 9 |
| 10 #include "base/macros.h" |
| 11 #include "base/strings/string16.h" |
| 12 #include "extensions/common/constants.h" |
| 13 #include "ui/gfx/image/canvas_image_source.h" |
| 14 #include "ui/gfx/image/image.h" |
| 15 |
| 16 namespace gfx { |
| 17 class Canvas; |
| 18 class Size; |
| 19 } |
| 20 |
| 21 namespace extensions { |
| 22 |
| 23 // An extension icon image with a gray background and the first letter of the |
| 24 // extension name, so that not all extensions without an icon look the same. |
| 25 class ExtensionIconPlaceholder : public gfx::CanvasImageSource { |
| 26 public: |
| 27 ExtensionIconPlaceholder(extension_misc::ExtensionIcons size, |
| 28 const std::string& name); |
| 29 ~ExtensionIconPlaceholder() override; |
| 30 |
| 31 // Creates an image backed by an ImageSkia with the ExtensionIconPlaceholder |
| 32 // as its image source. |
| 33 static gfx::Image CreateImage(extension_misc::ExtensionIcons size, |
| 34 const std::string& name); |
| 35 |
| 36 private: |
| 37 // gfx::CanvasImageSource: |
| 38 void Draw(gfx::Canvas* canvas) override; |
| 39 |
| 40 // The size this placeholder is filling. |
| 41 extension_misc::ExtensionIcons icon_size_; |
| 42 |
| 43 // The first letter of the extension's name. |
| 44 base::string16 letter_; |
| 45 |
| 46 // The gray background image, on top of which the letter is drawn. |
| 47 gfx::Image base_image_; |
| 48 |
| 49 DISALLOW_COPY_AND_ASSIGN(ExtensionIconPlaceholder); |
| 50 }; |
| 51 |
| 52 } // namespace extensions |
| 53 |
| 54 #endif // EXTENSIONS_BROWSER_EXTENSION_ICON_PLACEHOLDER_H_ |
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