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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_PRELOADING_PRERENDERER_H_
#define CONTENT_BROWSER_PRELOADING_PRERENDERER_H_
#include "content/browser/preloading/preloading_confidence.h"
#include "content/common/content_export.h"
#include "third_party/blink/public/mojom/speculation_rules/speculation_rules.mojom.h"
namespace content {
// Interface for speculation-rules based prerenderer.
class Prerenderer {
public:
using PrerenderCancellationCallback =
base::RepeatingCallback<void(const GURL&)>;
virtual ~Prerenderer() = default;
virtual void ProcessCandidatesForPrerender(
const std::vector<blink::mojom::SpeculationCandidatePtr>& candidates) = 0;
// Called when LCP is predicted.
// This is used to defer starting prerenders until LCP timing and is only
// used under LCPTimingPredictorPrerender2.
virtual void OnLCPPredicted() = 0;
virtual bool MaybePrerender(
const blink::mojom::SpeculationCandidatePtr& candidate,
const PreloadingPredictor& enacting_predictor,
PreloadingConfidence confidence) = 0;
virtual bool ShouldWaitForPrerenderResult(const GURL& url) = 0;
virtual void SetPrerenderCancellationCallback(
PrerenderCancellationCallback callback) = 0;
};
} // namespace content
#endif // CONTENT_BROWSER_PRELOADING_PRERENDERER_H_
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