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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_UI_WEBUI_DISCARDS_SITE_DATA_PROVIDER_IMPL_H_
#define CHROME_BROWSER_UI_WEBUI_DISCARDS_SITE_DATA_PROVIDER_IMPL_H_
#include <memory>
#include "base/sequence_checker.h"
#include "chrome/browser/ui/webui/discards/site_data.mojom.h"
#include "components/performance_manager/public/graph/graph.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace performance_manager {
class Graph;
class SiteDataReader;
} // namespace performance_manager
class SiteDataProviderImpl : public discards::mojom::SiteDataProvider,
public performance_manager::GraphOwnedDefaultImpl {
public:
explicit SiteDataProviderImpl(const std::string& profile_id);
~SiteDataProviderImpl() override;
SiteDataProviderImpl(const SiteDataProviderImpl& other) = delete;
SiteDataProviderImpl& operator=(const SiteDataProviderImpl&) = delete;
// Creates a new SiteDataProviderImpl to service |receiver| and passes its
// ownership to |graph|.
static void CreateAndBind(
mojo::PendingReceiver<discards::mojom::SiteDataProvider> receiver,
const std::string& profile_id_,
performance_manager::Graph* graph);
void GetSiteDataArray(
const std::vector<std::string>& explicitly_requested_origins,
GetSiteDataArrayCallback callback) override;
void GetSiteDataDatabaseSize(
GetSiteDataDatabaseSizeCallback callback) override;
private:
using SiteDataReader = performance_manager::SiteDataReader;
using OriginToReaderMap =
base::flat_map<std::string, std::unique_ptr<SiteDataReader>>;
static void OnConnectionError(SiteDataProviderImpl* impl);
// Binds |receiver_| by consuming |receiver|, which must be valid.
void Bind(mojo::PendingReceiver<discards::mojom::SiteDataProvider> receiver);
// This map pins requested readers and their associated data in memory until
// after the next read finishes. This is necessary to allow the database reads
// to go through and populate the requested entries.
OriginToReaderMap requested_origins_;
std::string profile_id_;
mojo::Receiver<discards::mojom::SiteDataProvider> receiver_{this};
};
#endif // CHROME_BROWSER_UI_WEBUI_DISCARDS_SITE_DATA_PROVIDER_IMPL_H_
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