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// Copyright 2024 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_QUICK_INSERT_QUICK_INSERT_ASSET_FETCHER_H_
#define ASH_QUICK_INSERT_QUICK_INSERT_ASSET_FETCHER_H_
#include <vector>
#include "ash/ash_export.h"
#include "base/files/file.h"
#include "base/functional/callback_forward.h"
class GURL;
class SkBitmap;
namespace gfx {
class ImageSkia;
class Size;
} // namespace gfx
namespace network {
class SimpleURLLoader;
}
namespace ash {
namespace image_util {
struct AnimationFrame;
} // namespace image_util
// Helper for asynchronously fetching Quick Insert assets.
class ASH_EXPORT QuickInsertAssetFetcher {
public:
// TODO: b/316936723 - Pass the frames by reference to avoid a copy.
using QuickInsertGifFetchedCallback =
base::OnceCallback<void(std::vector<image_util::AnimationFrame>)>;
using QuickInsertImageFetchedCallback =
base::OnceCallback<void(const gfx::ImageSkia&)>;
using FetchFileThumbnailCallback =
base::OnceCallback<void(const SkBitmap* bitmap, base::File::Error error)>;
virtual ~QuickInsertAssetFetcher() = default;
// Fetches and decodes a gif from `url`. If successful, the decoded gif frames
// will be returned via `callback`. Otherwise, `callback` is run with an empty
// vector of frames.
// `rank` is the index of the GIF in the results. The lower the rank, the
// higher its priority.
// If the returned `SimpleURLLoader` is destroyed before the request is
// complete, the request is canceled and `callback` will not be called.
[[nodiscard]] virtual std::unique_ptr<network::SimpleURLLoader>
FetchGifFromUrl(const GURL& url,
size_t rank,
QuickInsertGifFetchedCallback callback) = 0;
// Fetches and decodes a gif preview image from `url`. If successful, the
// decoded gif preview image will be returned via `callback`. Otherwise,
// `callback` is run with an empty ImageSkia.
// `rank` is the index of the GIF in the results. The lower the rank, the
// higher its priority.
// If the returned `SimpleURLLoader` is destroyed before the request is
// complete, the request is canceled and `callback` will not be called.
[[nodiscard]] virtual std::unique_ptr<network::SimpleURLLoader>
FetchGifPreviewImageFromUrl(const GURL& url,
size_t rank,
QuickInsertImageFetchedCallback callback) = 0;
// Fetches the thumbnail for a file and calls `callback` with the result.
virtual void FetchFileThumbnail(const base::FilePath& path,
const gfx::Size& size,
FetchFileThumbnailCallback callback) = 0;
};
} // namespace ash
#endif // ASH_QUICK_INSERT_QUICK_INSERT_ASSET_FETCHER_H_
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