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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 THIRD_PARTY_BLINK_RENDERER_CORE_DOM_DOCUMENT_DATA_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_DOM_DOCUMENT_DATA_H_
#include "services/network/public/mojom/trust_tokens.mojom-blink.h"
#include "third_party/blink/public/mojom/permissions/permission.mojom-blink.h"
#include "third_party/blink/renderer/platform/bindings/script_regexp.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_set.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_remote.h"
namespace blink {
// The purpose of blink::DocumentData is to reduce the size of document.h.
// Data members which require huge headers should be stored in
// blink::DocumentData instead of blink::Document.
//
// Ownership: A Document has a strong reference to a single DocumentData.
// Other instances should not have strong references to the DocumentData.
// Lifetime: A DocumentData instance is created on a Document creation, and
// is never destructed before the Document.
class DocumentData final : public GarbageCollected<DocumentData> {
public:
explicit DocumentData(ExecutionContext* context)
: permission_service_(context), trust_token_query_answerer_(context) {}
void Trace(Visitor* visitor) const {
visitor->Trace(permission_service_);
visitor->Trace(trust_token_query_answerer_);
visitor->Trace(pending_trust_token_query_resolvers_);
visitor->Trace(email_regexp_);
}
private:
// Mojo remote used to determine if the document has permission to access
// storage or not.
HeapMojoRemote<mojom::blink::PermissionService> permission_service_;
// Mojo remote used to answer API calls asking whether the user has trust
// tokens (https://github.com/wicg/trust-token-api). The other endpoint
// is in the network service, which may crash and restart. To handle this:
// 1. |pending_trust_token_query_resolvers_| keeps track of promises
// depending on |trust_token_query_answerer_|'s answers;
// 2. |TrustTokenQueryAnswererConnectionError| handles connection errors by
// rejecting all pending promises and clearing the pending set.
HeapMojoRemote<network::mojom::blink::TrustTokenQueryAnswerer>
trust_token_query_answerer_;
// In order to be able to answer promises when the Mojo remote disconnects,
// maintain all pending promises here, deleting them on successful completion
// or on connection error, whichever comes first.
HeapHashSet<Member<ScriptPromiseResolverBase>>
pending_trust_token_query_resolvers_;
// To do email regex checks.
Member<ScriptRegexp> email_regexp_;
// The number of immediate child frames created within this document so far.
// This count doesn't include this document's frame nor descendant frames.
int immediate_child_frame_creation_count_ = 0;
// LCPP's LCP ElementLocator was matched against a tag against html
// during preload scanning.
bool lcpp_encountered_lcp_in_html = false;
// Measures SVGImage performance per document.
int svg_image_processed_count_ = 0;
base::TimeDelta accumulated_svg_image_elapsed_time_;
friend class Document;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_DOM_DOCUMENT_DATA_H_
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