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// Copyright 2016 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_CHROME_APP_ICON_LOADER_H_
#define CHROME_BROWSER_EXTENSIONS_CHROME_APP_ICON_LOADER_H_
#include <map>
#include <memory>
#include <string>
#include "base/callback.h"
#include "base/macros.h"
#include "chrome/browser/extensions/chrome_app_icon_delegate.h"
#include "chrome/browser/ui/app_icon_loader.h"
class Profile;
namespace gfx {
class ImageSkia;
class Size;
} // namespace gfx
namespace extensions {
// Implementation of AppIconLoader that uses ChromeAppIcon to load and update
// Chrome app images.
class ChromeAppIconLoader : public AppIconLoader, public ChromeAppIconDelegate {
public:
using ResizeFunction =
base::RepeatingCallback<void(const gfx::Size&, gfx::ImageSkia*)>;
// |resize_function| overrides icon resizing behavior if non-null. Otherwise
// IconLoader with perform the resizing. In both cases |resource_size_in_dip|
// is used to pick the correct icon representation from resources.
ChromeAppIconLoader(Profile* profile,
int icon_size_in_dips,
const ResizeFunction& resize_function,
AppIconLoaderDelegate* delegate);
ChromeAppIconLoader(Profile* profile,
int icon_size_in_dips,
AppIconLoaderDelegate* delegate);
~ChromeAppIconLoader() override;
// AppIconLoader overrides:
bool CanLoadImageForApp(const std::string& id) override;
void FetchImage(const std::string& id) override;
void ClearImage(const std::string& id) override;
void UpdateImage(const std::string& id) override;
private:
using ExtensionIDToChromeAppIconMap =
std::map<std::string, std::unique_ptr<ChromeAppIcon>>;
// ChromeAppIconDelegate:
void OnIconUpdated(ChromeAppIcon* icon) override;
// Maps from extension id to ChromeAppIcon.
ExtensionIDToChromeAppIconMap map_;
// Function to be used to resize the image loaded from a resource. If null,
// resize will be performed by ImageLoader.
const ResizeFunction resize_function_;
DISALLOW_COPY_AND_ASSIGN(ChromeAppIconLoader);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_CHROME_APP_ICON_LOADER_H_
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