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// 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_
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