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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_APP_LIST_MODEL_APP_ICON_LOAD_HELPER_H_
#define ASH_APP_LIST_MODEL_APP_ICON_LOAD_HELPER_H_
#include <memory>
#include <string>
#include <vector>
#include "ash/app_list/model/app_list_item.h"
#include "ash/app_list/model/app_list_item_list.h"
#include "ash/app_list/model/app_list_item_list_observer.h"
#include "ash/app_list/model/app_list_item_observer.h"
#include "ash/app_list/model/app_list_model_export.h"
#include "base/functional/callback.h"
#include "base/scoped_observation.h"
namespace ash {
// Helper to trigger icon load of AppListeItem when its icon version number
// changes. It could be created for either a single AppListItem, or an
// AppListItemList for a folder where it watch for the first
// FolderImage::kNumFolderTopItems (currently 4) AppListItem in the list.
class APP_LIST_MODEL_EXPORT AppIconLoadHelper : public AppListItemObserver {
public:
using IconLoadCallback = base::RepeatingCallback<void(const std::string&)>;
AppIconLoadHelper(AppListItem* app_item, IconLoadCallback icon_load_callback);
AppIconLoadHelper(AppListItemList* list, IconLoadCallback icon_load_callback);
AppIconLoadHelper(const AppIconLoadHelper&) = delete;
AppIconLoadHelper& operator=(const AppIconLoadHelper&) = delete;
~AppIconLoadHelper() override;
private:
class AppItemHelper;
class AppItemListHelper;
std::unique_ptr<AppItemHelper> item_helper_;
std::unique_ptr<AppItemListHelper> list_helper_;
};
} // namespace ash
#endif // ASH_APP_LIST_MODEL_APP_ICON_LOAD_HELPER_H_
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