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// Copyright (c) 2013 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 CHROME_BROWSER_EXTENSIONS_APP_ICON_LOADER_H_
#define CHROME_BROWSER_EXTENSIONS_APP_ICON_LOADER_H_
#include <string>
#include "base/basictypes.h"
namespace gfx {
class ImageSkia;
}
namespace extensions {
// Interface used to load app icons. This is in its own class so that it can
// be mocked.
class AppIconLoader {
public:
class Delegate {
public:
virtual ~Delegate() {}
// Called when the image for an app is loaded.
virtual void SetAppImage(const std::string& id,
const gfx::ImageSkia& image) = 0;
};
AppIconLoader() {}
virtual ~AppIconLoader() {}
// Fetches the image for the specified id. When done (which may be
// synchronous), this should invoke SetAppImage() on the delegate.
virtual void FetchImage(const std::string& id) = 0;
// Clears the image for the specified id.
virtual void ClearImage(const std::string& id) = 0;
// Updates the image for the specified id. This is called to re-create
// the app icon with latest app state (enabled or disabled/terminiated).
// SetAppImage() is called when done.
virtual void UpdateImage(const std::string& id) = 0;
private:
DISALLOW_COPY_AND_ASSIGN(AppIconLoader);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_APP_ICON_LOADER_H_
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