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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 COMPONENTS_NTP_TILES_ICON_CACHER_IMPL_H_
#define COMPONENTS_NTP_TILES_ICON_CACHER_IMPL_H_
#include <memory>
#include <set>
#include <string>
#include <vector>
#include "base/callback.h"
#include "base/cancelable_callback.h"
#include "base/memory/weak_ptr.h"
#include "base/task/cancelable_task_tracker.h"
#include "components/ntp_tiles/icon_cacher.h"
#include "components/ntp_tiles/popular_sites.h"
namespace favicon {
class FaviconService;
class LargeIconService;
} // namespace favicon
namespace favicon_base {
struct FaviconImageResult;
struct LargeIconResult;
enum class GoogleFaviconServerRequestStatus;
} // namespace favicon_base
namespace gfx {
class Image;
} // namespace gfx
namespace image_fetcher {
class ImageFetcher;
struct RequestMetadata;
} // namespace image_fetcher
namespace ntp_tiles {
class IconCacherImpl : public IconCacher {
public:
// TODO(jkrcal): Make this eventually use only LargeIconService.
// crbug.com/696563
IconCacherImpl(favicon::FaviconService* favicon_service,
favicon::LargeIconService* large_icon_service,
std::unique_ptr<image_fetcher::ImageFetcher> image_fetcher);
~IconCacherImpl() override;
void StartFetchPopularSites(
PopularSites::Site site,
const base::Closure& icon_available,
const base::Closure& preliminary_icon_available) override;
// TODO(jkrcal): Rename all instances of "MostLikely" to "ChromeSuggestions".
void StartFetchMostLikely(const GURL& page_url,
const base::Closure& icon_available) override;
private:
using CancelableImageCallback =
base::CancelableCallback<void(const gfx::Image&)>;
void OnGetFaviconImageForPageURLFinished(
PopularSites::Site site,
const base::Closure& preliminary_icon_available,
const favicon_base::FaviconImageResult& result);
void OnPopularSitesFaviconDownloaded(
PopularSites::Site site,
std::unique_ptr<CancelableImageCallback> preliminary_callback,
const std::string& id,
const gfx::Image& fetched_image,
const image_fetcher::RequestMetadata& metadata);
std::unique_ptr<CancelableImageCallback> MaybeProvideDefaultIcon(
const PopularSites::Site& site,
const base::Closure& preliminary_icon_available);
void SaveAndNotifyDefaultIconForSite(
const PopularSites::Site& site,
const base::Closure& preliminary_icon_available,
const gfx::Image& image);
void SaveIconForSite(const PopularSites::Site& site, const gfx::Image& image);
void OnGetLargeIconOrFallbackStyleFinished(
const GURL& page_url,
const favicon_base::LargeIconResult& result);
void OnMostLikelyFaviconDownloaded(
const GURL& request_url,
favicon_base::GoogleFaviconServerRequestStatus status);
bool StartRequest(const GURL& request_url,
const base::Closure& icon_available);
void FinishRequestAndNotifyIconAvailable(const GURL& request_url,
bool newly_available);
base::CancelableTaskTracker tracker_;
favicon::FaviconService* const favicon_service_;
favicon::LargeIconService* const large_icon_service_;
std::unique_ptr<image_fetcher::ImageFetcher> const image_fetcher_;
std::map<GURL, std::vector<base::Closure>> in_flight_requests_;
base::WeakPtrFactory<IconCacherImpl> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(IconCacherImpl);
};
} // namespace ntp_tiles
#endif // COMPONENTS_NTP_TILES_ICON_CACHER_IMPL_H_
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