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// Copyright 2018 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 COMPONENTS_OFFLINE_PAGES_CORE_MODEL_GET_THUMBNAIL_TASK_H_
#define COMPONENTS_OFFLINE_PAGES_CORE_MODEL_GET_THUMBNAIL_TASK_H_
#include <vector>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "components/offline_pages/core/offline_page_thumbnail.h"
#include "components/offline_pages/core/task.h"
namespace offline_pages {
class OfflinePageMetadataStore;
// GetThumbnailTask reads a thumbnail from the page_thumbnails table.
class GetThumbnailTask : public Task {
public:
typedef base::OnceCallback<void(std::unique_ptr<OfflinePageThumbnail>)>
CompleteCallback;
GetThumbnailTask(OfflinePageMetadataStore* store,
int64_t offline_id,
CompleteCallback complete_callback);
~GetThumbnailTask() override;
// Task implementation:
void Run() override;
private:
typedef std::unique_ptr<OfflinePageThumbnail> Result;
void Complete(Result result);
OfflinePageMetadataStore* store_;
int64_t offline_id_;
base::OnceCallback<void(std::unique_ptr<OfflinePageThumbnail>)>
complete_callback_;
base::WeakPtrFactory<GetThumbnailTask> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(GetThumbnailTask);
};
} // namespace offline_pages
#endif // COMPONENTS_OFFLINE_PAGES_CORE_MODEL_GET_THUMBNAIL_TASK_H_
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