2692db8699
Note that as of this commit, there aren't any such throwers, and the call site in Heap::allocate will drop exceptions on the floor. This commit only serves to change the declaration of the overrides, make sure they return an empty value, and to propagate OOM errors frm their base initialize invocations.
122 lines
4 KiB
C++
122 lines
4 KiB
C++
/*
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* Copyright (c) 2018-2021, 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 <AK/Function.h>
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#include <LibWeb/DOM/DocumentLoadEventDelayer.h>
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#include <LibWeb/HTML/HTMLElement.h>
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#include <LibWeb/HTML/Scripting/Script.h>
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namespace Web::HTML {
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class HTMLScriptElement final
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: public HTMLElement
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, public ResourceClient {
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WEB_PLATFORM_OBJECT(HTMLScriptElement, HTMLElement);
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public:
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virtual ~HTMLScriptElement() override;
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bool is_force_async() const { return m_force_async; }
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bool is_ready_to_be_parser_executed() const { return m_ready_to_be_parser_executed; }
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bool failed_to_load() const { return m_failed_to_load; }
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template<OneOf<XMLDocumentBuilder, HTMLParser> T>
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void set_parser_document(Badge<T>, DOM::Document& document) { m_parser_document = &document; }
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template<OneOf<XMLDocumentBuilder, HTMLParser> T>
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void set_force_async(Badge<T>, bool b) { m_force_async = b; }
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template<OneOf<XMLDocumentBuilder, HTMLParser> T>
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void set_already_started(Badge<T>, bool b) { m_already_started = b; }
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template<OneOf<XMLDocumentBuilder, HTMLParser> T>
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void prepare_script(Badge<T>) { prepare_script(); }
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void execute_script();
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bool is_parser_inserted() const { return !!m_parser_document; }
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virtual void inserted() override;
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// https://html.spec.whatwg.org/multipage/scripting.html#dom-script-supports
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static bool supports(JS::VM&, DeprecatedString const& type)
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{
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return type.is_one_of("classic", "module");
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}
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void set_source_line_number(Badge<HTMLParser>, size_t source_line_number) { m_source_line_number = source_line_number; }
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public:
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HTMLScriptElement(DOM::Document&, DOM::QualifiedName);
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virtual void resource_did_load() override;
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virtual void resource_did_fail() override;
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virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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// https://html.spec.whatwg.org/multipage/scripting.html#prepare-the-script-element
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void prepare_script();
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void begin_delaying_document_load_event(DOM::Document&);
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struct ResultState {
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struct Uninitialized { };
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struct Null { };
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};
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using Result = Variant<ResultState::Uninitialized, ResultState::Null, JS::NonnullGCPtr<HTML::Script>>;
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// https://html.spec.whatwg.org/multipage/scripting.html#mark-as-ready
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void mark_as_ready(Result);
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// https://html.spec.whatwg.org/multipage/scripting.html#parser-document
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JS::GCPtr<DOM::Document> m_parser_document;
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// https://html.spec.whatwg.org/multipage/scripting.html#preparation-time-document
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JS::GCPtr<DOM::Document> m_preparation_time_document;
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// https://html.spec.whatwg.org/multipage/scripting.html#script-force-async
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bool m_force_async { false };
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// https://html.spec.whatwg.org/multipage/scripting.html#already-started
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bool m_already_started { false };
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// https://html.spec.whatwg.org/multipage/scripting.html#concept-script-external
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bool m_from_an_external_file { false };
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bool m_script_ready { false };
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// https://html.spec.whatwg.org/multipage/scripting.html#ready-to-be-parser-executed
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bool m_ready_to_be_parser_executed { false };
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bool m_failed_to_load { false };
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enum class ScriptType {
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Null,
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Classic,
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Module,
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ImportMap,
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};
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// https://html.spec.whatwg.org/multipage/scripting.html#concept-script-type
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ScriptType m_script_type { ScriptType::Null };
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// https://html.spec.whatwg.org/multipage/scripting.html#steps-to-run-when-the-result-is-ready
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Function<void()> m_steps_to_run_when_the_result_is_ready;
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// https://html.spec.whatwg.org/multipage/scripting.html#concept-script-result
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Result m_result { ResultState::Uninitialized {} };
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// https://html.spec.whatwg.org/multipage/scripting.html#concept-script-delay-load
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Optional<DOM::DocumentLoadEventDelayer> m_document_load_event_delayer;
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size_t m_source_line_number { 1 };
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};
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}
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