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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_PHONEHUB_BROWSER_TABS_METADATA_FETCHER_IMPL_H_
#define CHROME_BROWSER_ASH_PHONEHUB_BROWSER_TABS_METADATA_FETCHER_IMPL_H_
#include <vector>
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chromeos/ash/components/phonehub/browser_tabs_metadata_fetcher.h"
#include "chromeos/ash/components/phonehub/browser_tabs_model.h"
namespace favicon_base {
struct FaviconImageResult;
} // namespace favicon_base
namespace favicon {
class HistoryUiFaviconRequestHandler;
} // namespace favicon
namespace ash::phonehub {
// BrowserTabsMetadataFetcher implementation. First, a vector containing
// metadata of the most recently visited tab to least recently visited is
// created. The metadata is stored from data provided by a SyncedSession. After
// the ordered vector is created, the HistoryUiFaviconRequestHandler is used to
// asynchronously fetch favicon images for the most recently visited tabs. Once
// all the favicons for the most recently visited tabs (up to
// BrowserTabsModel::kMaxMostRecentTabs) have been fetched, |results_| is
// invoked with the callback passed to the class.
class BrowserTabsMetadataFetcherImpl : public BrowserTabsMetadataFetcher {
public:
explicit BrowserTabsMetadataFetcherImpl(
favicon::HistoryUiFaviconRequestHandler* favicon_request_handler);
~BrowserTabsMetadataFetcherImpl() override;
// BrowserTabsMetadataFetcher:
void Fetch(
const sync_sessions::SyncedSession* session,
base::OnceCallback<void(BrowserTabsMetadataResponse)> callback) override;
private:
void OnAllFaviconsFetched();
void OnFaviconReady(
size_t index_in_results,
base::OnceClosure done_closure,
const favicon_base::FaviconImageResult& favicon_image_result);
const raw_ptr<favicon::HistoryUiFaviconRequestHandler>
favicon_request_handler_;
std::vector<BrowserTabsModel::BrowserTabMetadata> results_;
base::OnceCallback<void(BrowserTabsMetadataResponse)> callback_;
base::WeakPtrFactory<BrowserTabsMetadataFetcherImpl> weak_ptr_factory_{this};
};
} // namespace ash::phonehub
#endif // CHROME_BROWSER_ASH_PHONEHUB_BROWSER_TABS_METADATA_FETCHER_IMPL_H_
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