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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 COMPONENTS_AUTOFILL_CORE_BROWSER_UI_AUTOFILL_IMAGE_FETCHER_H_
#define COMPONENTS_AUTOFILL_CORE_BROWSER_UI_AUTOFILL_IMAGE_FETCHER_H_
#include <map>
#include <memory>
#include <optional>
#include "base/barrier_callback.h"
#include "base/memory/weak_ptr.h"
#include "components/autofill/core/browser/ui/autofill_image_fetcher_base.h"
#include "components/image_fetcher/core/image_fetcher_types.h"
class GURL;
namespace gfx {
class Image;
} // namespace gfx
namespace image_fetcher {
class ImageFetcher;
struct RequestMetadata;
} // namespace image_fetcher
namespace autofill {
// Abstract class for Desktop and iOS that exposes image fetcher for images
// stored outside of Chrome.
//
// Subclasses provide the underlying platform-specific
// image_fetcher::ImageFetcher.
class AutofillImageFetcher : public AutofillImageFetcherBase {
public:
~AutofillImageFetcher() override;
// AutofillImageFetcherBase:
// The image sizes passed in the arguments are unused as this param is only
// used for Android. For Desktop, the implementation of this method has
// hardcoded image sizes.
void FetchCreditCardArtImagesForURLs(
base::span<const GURL> image_urls,
base::span<const AutofillImageFetcherBase::ImageSize> image_sizes_unused)
override;
void FetchPixAccountImagesForURLs(base::span<const GURL> image_urls) override;
void FetchValuableImagesForURLs(base::span<const GURL> image_urls) override;
const gfx::Image* GetCachedImageForUrl(const GURL& image_url,
ImageType image_type) const override;
// Subclasses may override this to provide custom handling of a given card art
// URL for `image_type`. Resolved URLs are used as mapping keys for image
// caching.
virtual GURL ResolveImageURL(const GURL& image_url,
ImageType image_type) const = 0;
// Applies platform-specific post-processing to the `image` of the given
// `image_type`. The passed-in `image_url` is the original URL before
// resolving via `ResolveImageURL`.
virtual gfx::Image ResolveImage(const GURL& image_url,
const gfx::Image& image,
ImageType image_type);
// Subclasses override this to provide the underlying image fetcher instance.
//
// Non-const because some platforms initialize the image fetcher dynamically
// as needed.
virtual image_fetcher::ImageFetcher* GetImageFetcher() = 0;
// Subclasses override this to provide a weak-pointer to this class. This is
// not done in the parent class as the base::WeakPtrFactory member must be the
// last member in the object, which is not possible to ensure for
// superclasses.
virtual base::WeakPtr<AutofillImageFetcher> GetWeakPtr() = 0;
protected:
AutofillImageFetcher();
// Called when an image is fetched. If the fetch was unsuccessful,
// `image` will be an empty gfx::Image().
void OnImageFetched(const GURL& image_url,
ImageType image_type,
const gfx::Image& image,
const image_fetcher::RequestMetadata& metadata);
// Subclasses may override this to provide custom handling of a fetched card
// art image. The passed-in `card_art_url` is the original URL before
// resolving via `ResolveImageURL`.
virtual gfx::Image ResolveCardArtImage(const GURL& card_art_url,
const gfx::Image& card_art_image) = 0;
// Subclasses may override this to provide custom handling of a fetched
// valuable image.
virtual gfx::Image ResolveValuableImage(const gfx::Image& valuable_image) = 0;
private:
void FetchImageForURL(const GURL& image_url, ImageType image_type);
// Keeps track of the number of fetch attempts for a given URL.
std::map<GURL, int> fetch_attempt_counter_;
// An in-memory image cache which stores post-processed images.
std::map<GURL, std::unique_ptr<gfx::Image>> cached_images_;
};
} // namespace autofill
#endif // COMPONENTS_AUTOFILL_CORE_BROWSER_UI_AUTOFILL_IMAGE_FETCHER_H_
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