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`HTMLIFrameElement::inserted()` does following: 1. Init a new navigable. This step appends a task on session history traversal queue (SHTQ) that creates a new nested history. 2. Process iframe's attributes Processing of iframe's attributes might result in synchronous navigation that fails to get active SHE if SHTQ task that creates new nested history is not yet completed. Before this change, a workaround involved forcing the processing of SHTQ, which was terrible hack because it could occur in the middle of another SHTQ task. This change removes the need for "force SHTQ processing" by ensuring that the processing of iframe's attributes is always executed after the iframe's navigable nested history has been created.
85 lines
3 KiB
C++
85 lines
3 KiB
C++
/*
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* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibWeb/HTML/HTMLElement.h>
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#include <LibWeb/HTML/Navigable.h>
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namespace Web::HTML {
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class NavigableContainer : public HTMLElement {
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WEB_PLATFORM_OBJECT(NavigableContainer, HTMLElement);
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public:
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static JS::GCPtr<NavigableContainer> navigable_container_with_content_navigable(JS::NonnullGCPtr<Navigable> navigable);
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virtual ~NavigableContainer() override;
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static HashTable<NavigableContainer*>& all_instances();
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JS::GCPtr<Navigable> content_navigable() { return m_content_navigable; }
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JS::GCPtr<Navigable const> content_navigable() const { return m_content_navigable.ptr(); }
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BrowsingContext* nested_browsing_context()
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{
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if (m_content_navigable)
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return m_content_navigable->active_browsing_context();
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return nullptr;
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}
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BrowsingContext const* nested_browsing_context() const
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{
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if (m_content_navigable)
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return m_content_navigable->active_browsing_context();
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return nullptr;
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}
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const DOM::Document* content_document() const;
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DOM::Document const* content_document_without_origin_check() const;
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HTML::WindowProxy* content_window();
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DOM::Document const* get_svg_document() const;
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void destroy_the_child_navigable();
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// All elements that extend NavigableContainer "potentially delay the load event".
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// (embed, frame, iframe, and object)
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// https://html.spec.whatwg.org/multipage/iframe-embed-object.html#potentially-delays-the-load-event
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bool currently_delays_the_load_event() const;
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protected:
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NavigableContainer(DOM::Document&, DOM::QualifiedName);
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virtual void visit_edges(Cell::Visitor&) override;
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// https://html.spec.whatwg.org/multipage/iframe-embed-object.html#shared-attribute-processing-steps-for-iframe-and-frame-elements
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Optional<URL::URL> shared_attribute_processing_steps_for_iframe_and_frame(bool initial_insertion);
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// https://html.spec.whatwg.org/multipage/iframe-embed-object.html#navigate-an-iframe-or-frame
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void navigate_an_iframe_or_frame(URL::URL url, ReferrerPolicy::ReferrerPolicy referrer_policy, Optional<String> srcdoc_string = {});
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WebIDL::ExceptionOr<void> create_new_child_navigable(JS::SafeFunction<void()> afterSessionHistoryUpdate = {});
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// https://html.spec.whatwg.org/multipage/document-sequences.html#content-navigable
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JS::GCPtr<Navigable> m_content_navigable { nullptr };
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void set_potentially_delays_the_load_event(bool value) { m_potentially_delays_the_load_event = value; }
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void set_content_navigable_initialized() { m_content_navigable_initialized = true; }
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private:
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virtual bool is_navigable_container() const override { return true; }
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bool m_potentially_delays_the_load_event { true };
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bool m_content_navigable_initialized { false };
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};
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}
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namespace Web::DOM {
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template<>
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inline bool Node::fast_is<HTML::NavigableContainer>() const { return is_navigable_container(); }
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}
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