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/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Function.h>
#include <LibWeb/DOM/DocumentLoadEventDelayer.h>
#include <LibWeb/HTML/HTMLElement.h>
#include <LibWeb/HTML/Scripting/Script.h>
namespace Web::HTML {
class HTMLScriptElement final
: public HTMLElement
, public ResourceClient {
WEB_PLATFORM_OBJECT(HTMLScriptElement, HTMLElement);
public:
virtual ~HTMLScriptElement() override;
bool is_force_async() const { return m_force_async; }
bool is_ready_to_be_parser_executed() const { return m_ready_to_be_parser_executed; }
bool failed_to_load() const { return m_failed_to_load; }
template<OneOf<XMLDocumentBuilder, HTMLParser> T>
void set_parser_document(Badge<T>, DOM::Document& document) { m_parser_document = &document; }
template<OneOf<XMLDocumentBuilder, HTMLParser> T>
void set_force_async(Badge<T>, bool b) { m_force_async = b; }
template<OneOf<XMLDocumentBuilder, HTMLParser> T>
void set_already_started(Badge<T>, bool b) { m_already_started = b; }
template<OneOf<XMLDocumentBuilder, HTMLParser> T>
void prepare_script(Badge<T>) { prepare_script(); }
void execute_script();
bool is_parser_inserted() const { return !!m_parser_document; }
virtual void inserted() override;
// https://html.spec.whatwg.org/multipage/scripting.html#dom-script-supports
static bool supports(JS::VM&, DeprecatedString const& type)
{
return type.is_one_of("classic", "module");
}
void set_source_line_number(Badge<HTMLParser>, size_t source_line_number) { m_source_line_number = source_line_number; }
public:
HTMLScriptElement(DOM::Document&, DOM::QualifiedName);
virtual void resource_did_load() override;
virtual void resource_did_fail() override;
virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
// https://html.spec.whatwg.org/multipage/scripting.html#prepare-the-script-element
void prepare_script();
void begin_delaying_document_load_event(DOM::Document&);
struct ResultState {
struct Uninitialized { };
struct Null { };
};
using Result = Variant<ResultState::Uninitialized, ResultState::Null, JS::NonnullGCPtr<HTML::Script>>;
// https://html.spec.whatwg.org/multipage/scripting.html#mark-as-ready
void mark_as_ready(Result);
// https://html.spec.whatwg.org/multipage/scripting.html#parser-document
JS::GCPtr<DOM::Document> m_parser_document;
// https://html.spec.whatwg.org/multipage/scripting.html#preparation-time-document
JS::GCPtr<DOM::Document> m_preparation_time_document;
// https://html.spec.whatwg.org/multipage/scripting.html#script-force-async
bool m_force_async { false };
// https://html.spec.whatwg.org/multipage/scripting.html#already-started
bool m_already_started { false };
// https://html.spec.whatwg.org/multipage/scripting.html#concept-script-external
bool m_from_an_external_file { false };
bool m_script_ready { false };
// https://html.spec.whatwg.org/multipage/scripting.html#ready-to-be-parser-executed
bool m_ready_to_be_parser_executed { false };
bool m_failed_to_load { false };
enum class ScriptType {
Null,
Classic,
Module,
ImportMap,
};
// https://html.spec.whatwg.org/multipage/scripting.html#concept-script-type
ScriptType m_script_type { ScriptType::Null };
// https://html.spec.whatwg.org/multipage/scripting.html#steps-to-run-when-the-result-is-ready
Function<void()> m_steps_to_run_when_the_result_is_ready;
// https://html.spec.whatwg.org/multipage/scripting.html#concept-script-result
Result m_result { ResultState::Uninitialized {} };
// https://html.spec.whatwg.org/multipage/scripting.html#concept-script-delay-load
Optional<DOM::DocumentLoadEventDelayer> m_document_load_event_delayer;
size_t m_source_line_number { 1 };
};
}
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