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2645695fdd
Previously, the active document's lifecycle was bound to SessionHistoryEntry via DocumentState. The ownership chain was: Navigable → SessionHistoryEntry → DocumentState → Document This made it impossible to move SessionHistoryEntry to the UI process (which cannot own DOM::Document). This commit decouples the two by giving Navigable a direct m_active_document field that serves as the authoritative source for active_document(). - Navigable owns m_active_document directly; active_document() reads from it instead of going through the active session history entry. - DocumentState no longer holds a Document pointer. Instead, it stores a document_id for "same document?" checks. Same-document navigations share a DocumentState and thus the same document_id, while cross-document navigations create a new DocumentState with a new ID. - A pending_document parameter is threaded through finalize_a_cross_document_navigation → apply_the_push_or_replace → apply_the_history_step so the newly created document reaches activation without being stored on DocumentState. - For traversal, the population output delivers the document. A resolved_document is computed per continuation from either the pending document, the population output, or the current active document (for same-document traversals).
33 lines
970 B
C++
33 lines
970 B
C++
/*
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* Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Crypto/Crypto.h>
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#include <LibWeb/HTML/BrowsingContext.h>
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#include <LibWeb/HTML/DocumentState.h>
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#include <LibWeb/HTML/SessionHistoryEntry.h>
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#include <LibWeb/HTML/StructuredSerialize.h>
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namespace Web::HTML {
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GC_DEFINE_ALLOCATOR(SessionHistoryEntry);
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void SessionHistoryEntry::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_document_state);
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visitor.visit(m_original_source_browsing_context);
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visitor.visit(m_policy_container);
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}
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SessionHistoryEntry::SessionHistoryEntry()
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: m_classic_history_api_state(MUST(structured_serialize_for_storage(vm(), JS::js_null())))
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, m_navigation_api_state(MUST(structured_serialize_for_storage(vm(), JS::js_undefined())))
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, m_navigation_api_key(Crypto::generate_random_uuid())
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, m_navigation_api_id(Crypto::generate_random_uuid())
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{
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}
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}
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