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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef CLIENT_HINTS_H_
#define CLIENT_HINTS_H_
// based on components/client_hints/browser/client_hints.h:
// Copyright 2017 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.
#include "base/memory/raw_ptr.h"
#include "base/no_destructor.h"
#include "base/sequence_checker.h"
#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
#include "components/keyed_service/core/keyed_service.h"
#include "content/public/browser/client_hints_controller_delegate.h"
#include "third_party/blink/public/common/user_agent/user_agent_metadata.h"
namespace QtWebEngineCore {
class ClientHints;
class ClientHintsFactory : public BrowserContextKeyedServiceFactory
{
public:
ClientHintsFactory(const ClientHintsFactory &) = delete;
ClientHintsFactory &operator=(const ClientHintsFactory &) = delete;
static ClientHints *GetForBrowserContext(content::BrowserContext *browser_context);
static ClientHintsFactory *GetInstance();
private:
friend class base::NoDestructor<ClientHintsFactory>;
ClientHintsFactory();
~ClientHintsFactory() override;
// BrowserContextKeyedServiceFactory methods:
KeyedService *BuildServiceInstanceFor(content::BrowserContext *profile) const override;
content::BrowserContext *GetBrowserContextToUse(content::BrowserContext *context) const override;
};
class ClientHints : public KeyedService, public content::ClientHintsControllerDelegate
{
public:
ClientHints(content::BrowserContext *context);
ClientHints(const ClientHints &) = delete;
ClientHints &operator=(const ClientHints &) = delete;
~ClientHints() override;
// content::ClientHintsControllerDelegate:
network::NetworkQualityTracker *GetNetworkQualityTracker() override;
void GetAllowedClientHintsFromSource(const url::Origin &origin, blink::EnabledClientHints *client_hints) override;
bool IsJavaScriptAllowed(const GURL &url, content::RenderFrameHost *parent_rfh) override;
bool AreThirdPartyCookiesBlocked(const GURL &url, content::RenderFrameHost *rfh) override;
blink::UserAgentMetadata GetUserAgentMetadata() override;
void PersistClientHints(const url::Origin &primary_origin,
content::RenderFrameHost *parent_rfh,
const std::vector<network::mojom::WebClientHintsType> &client_hints) override;
void SetAdditionalClientHints(const std::vector<network::mojom::WebClientHintsType> &) override;
void ClearAdditionalClientHints() override;
void SetMostRecentMainFrameViewportSize(const gfx::Size&) override;
gfx::Size GetMostRecentMainFrameViewportSize() override;
private:
SEQUENCE_CHECKER(sequence_checker_);
raw_ptr<content::BrowserContext> context_ = nullptr;
// Stores enabled Client Hint types for an origin.
std::map<url::Origin, blink::EnabledClientHints> accept_ch_cache_
GUARDED_BY_CONTEXT(sequence_checker_);
// Additional Client Hint types for Client Hints Reliability. If additional
// hints are set, they would be included by subsequent calls to
// GetAllowedClientHintsFromSource.
std::vector<network::mojom::WebClientHintsType> additional_hints_
GUARDED_BY_CONTEXT(sequence_checker_);
std::unique_ptr<network::NetworkQualityTracker> network_quality_tracker_
GUARDED_BY_CONTEXT(sequence_checker_);
// This stores the viewport size of the most recent visible main frame tree
// node. This value is only used when the viewport size cannot be directly
// queried such as for prefetch requests and for tab restores.
gfx::Size viewport_size_;
};
} // namespace QtWebEngineCore
#endif
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