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// Copyright 2025 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_PAGE_CONTENT_ANNOTATIONS_PAGE_CONTENT_EXTRACTION_SERVICE_H_
#define CHROME_BROWSER_PAGE_CONTENT_ANNOTATIONS_PAGE_CONTENT_EXTRACTION_SERVICE_H_
#include "base/observer_list.h"
#include "components/keyed_service/core/keyed_service.h"
#include "components/optimization_guide/proto/features/common_quality_data.pb.h"
namespace content {
class Page;
}
namespace page_content_annotations {
class PageContentExtractionService : public KeyedService {
public:
class Observer : public base::CheckedObserver {
public:
// Invoked when `page_content` is extracted for `page`. The extraction is
// triggered for every page once the page has sufficiently loaded.
virtual void OnPageContentExtracted(
content::Page& page,
const optimization_guide::proto::AnnotatedPageContent& page_content) {}
};
PageContentExtractionService();
~PageContentExtractionService() override;
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
// Returns whether page content extraction should be enabled. It should be
// enabled based on features, or when some observer has registered for page
// content.
bool ShouldEnablePageContentExtraction() const;
private:
friend class AnnotatedPageContentRequest;
// Invoked when `page_content` is extracted for `page`, to notify the
// observers.
void OnPageContentExtracted(
content::Page& page,
const optimization_guide::proto::AnnotatedPageContent& page_content);
base::ObserverList<Observer> observers_;
};
} // namespace page_content_annotations
#endif // CHROME_BROWSER_PAGE_CONTENT_ANNOTATIONS_PAGE_CONTENT_EXTRACTION_SERVICE_H_
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