| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef EXTENSIONS_BROWSER_EXTENSION_ICON_PLACEHOLDER_H_ |
| #define EXTENSIONS_BROWSER_EXTENSION_ICON_PLACEHOLDER_H_ |
| |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "base/strings/string16.h" |
| #include "extensions/common/constants.h" |
| #include "ui/gfx/image/canvas_image_source.h" |
| #include "ui/gfx/image/image.h" |
| |
| namespace gfx { |
| class Canvas; |
| } |
| |
| namespace extensions { |
| |
| // An extension icon image with a gray background and the first letter of the |
| // extension name, so that not all extensions without an icon look the same. |
| class ExtensionIconPlaceholder : public gfx::CanvasImageSource { |
| public: |
| ExtensionIconPlaceholder(extension_misc::ExtensionIcons size, |
| const std::string& name); |
| ~ExtensionIconPlaceholder() override; |
| |
| // Creates an image backed by an ImageSkia with the ExtensionIconPlaceholder |
| // as its image source. |
| static gfx::Image CreateImage(extension_misc::ExtensionIcons size, |
| const std::string& name); |
| |
| private: |
| // gfx::CanvasImageSource: |
| void Draw(gfx::Canvas* canvas) override; |
| |
| // The size this placeholder is filling. |
| extension_misc::ExtensionIcons icon_size_; |
| |
| // The first letter of the extension's name. |
| base::string16 letter_; |
| |
| // The gray background image, on top of which the letter is drawn. |
| gfx::Image base_image_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ExtensionIconPlaceholder); |
| }; |
| |
| } // namespace extensions |
| |
| #endif // EXTENSIONS_BROWSER_EXTENSION_ICON_PLACEHOLDER_H_ |