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LibWeb: Return a representation of an 'Agent' in 'relevant agent'
This makes it more convenient to use the 'relvant agent' concept, instead of the awkward dynamic casts we needed to do for every call site. mutation_observers is also changed to hold a GC::Root instead of raw GC::Ptr. Somehow this was not causing problems before, but trips up CI after these changes.
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Notes:
github-actions[bot]
2025-01-11 15:40:39 +00:00
Author: https://github.com/shannonbooth
Commit: 64eeda6450
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3142
15 changed files with 140 additions and 98 deletions
43
Libraries/LibWeb/HTML/Scripting/Agent.h
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43
Libraries/LibWeb/HTML/Scripting/Agent.h
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/*
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* Copyright (c) 2025, Shannon Booth <shannon@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 <AK/OwnPtr.h>
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#include <AK/Vector.h>
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#include <LibGC/Root.h>
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#include <LibJS/Forward.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/HTML/CustomElements/CustomElementReactionsStack.h>
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namespace Web::HTML {
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// https://html.spec.whatwg.org/multipage/webappapis.html#similar-origin-window-agent
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struct Agent {
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GC::Root<HTML::EventLoop> event_loop;
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// FIXME: These should only be on similar-origin window agents, but we don't currently differentiate agent types.
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// https://dom.spec.whatwg.org/#mutation-observer-compound-microtask-queued-flag
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bool mutation_observer_microtask_queued { false };
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// https://dom.spec.whatwg.org/#mutation-observer-list
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// FIXME: This should be a set.
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Vector<GC::Root<DOM::MutationObserver>> mutation_observers;
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// https://html.spec.whatwg.org/multipage/custom-elements.html#custom-element-reactions-stack
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// Each similar-origin window agent has a custom element reactions stack, which is initially empty.
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CustomElementReactionsStack custom_element_reactions_stack {};
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// https://html.spec.whatwg.org/multipage/custom-elements.html#current-element-queue
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// A similar-origin window agent's current element queue is the element queue at the top of its custom element reactions stack.
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Vector<GC::Root<DOM::Element>>& current_element_queue() { return custom_element_reactions_stack.element_queue_stack.last(); }
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Vector<GC::Root<DOM::Element>> const& current_element_queue() const { return custom_element_reactions_stack.element_queue_stack.last(); }
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};
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Agent& relevant_agent(JS::Object const&);
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}
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