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LibWeb: Add support for type module in HTMLScriptElement

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This patch adds support for script elements with the type attribute set
to "module". As a first cut the changes are mainly focused around inline
scripts.

Co-authored-by: davidot <davidot@serenityos.org>
This commit is contained in:
networkException 2022-10-03 21:08:02 +02:00 • committed by Andreas Kling
parent c51cf66347
commit f92d95224e
1 changed files with 28 additions and 12 deletions
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40
Userland/Libraries/LibWeb/HTML/HTMLScriptElement.cpp
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, networkException <networkexception@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -15,6 +16,7 @@
#include <LibWeb/HTML/EventNames.h>
#include <LibWeb/HTML/HTMLScriptElement.h>
#include <LibWeb/HTML/Scripting/ClassicScript.h>
#include <LibWeb/HTML/Scripting/Fetching.h>
#include <LibWeb/Infra/CharacterTypes.h>
#include <LibWeb/Loader/ResourceLoader.h>
#include <LibWeb/MimeSniff/MimeType.h>
@ -47,6 +49,8 @@ void HTMLScriptElement::begin_delaying_document_load_event(DOM::Document& docume
// https://html.spec.whatwg.org/multipage/scripting.html#execute-the-script-block
void HTMLScriptElement::execute_script()
{
// FIXME: Update the steps to match current spec.
// 1. Let document be scriptElement's node document.
JS::NonnullGCPtr<DOM::Document> node_document = document();
@ -96,8 +100,8 @@ void HTMLScriptElement::execute_script()
// 1. Assert: document's currentScript attribute is null.
VERIFY(!document().current_script());
// FIXME: 2. Run the module script given by the script's script for scriptElement.
TODO();
// 2. Run the module script given by the script's script for scriptElement.
(void)verify_cast<JavaScriptModuleScript>(*m_script).run();
}
// 6. Decrement the ignore-destructive-writes counter of document, if it was incremented in the earlier step.
@ -112,6 +116,8 @@ void HTMLScriptElement::execute_script()
// https://html.spec.whatwg.org/multipage/scripting.html#prepare-a-script
void HTMLScriptElement::prepare_script()
{
// FIXME: Update the steps to match current spec.
// 1. If the script element is marked as having "already started", then return. The script is not executed.
if (m_already_started) {
dbgln("HTMLScriptElement: Refusing to run script because it has already started.");
@ -293,21 +299,26 @@ void HTMLScriptElement::prepare_script()
auto resource = ResourceLoader::the().load_resource(Resource::Type::Generic, request);
set_resource(resource);
} else if (m_script_type == ScriptType::Module) {
// FIXME: -> "module"
// Fetch an external module script graph given url, settings object, and options.
// Fetch an external module script graph given url, settings object, options, and onComplete.
// FIXME: Pass options.
fetch_external_module_script_graph(url, document().relevant_settings_object(), [this](auto const* result) {
// 1. Mark as ready el given result.
m_script = result;
script_became_ready();
});
}
} else {
// 27. If the element does not have a src content attribute, run these substeps:
// FIXME: 1. Let base URL be the script element's node document's document base URL.
// 1. Let base URL be the script element's node document's document base URL.
auto base_url = m_document->base_url();
// 2. Switch on the script's type:
if (m_script_type == ScriptType::Classic) {
// -> "classic"
// 1. Let script be the result of creating a classic script using source text, settings object, base URL, and options.
// FIXME: Pass settings, base URL and options.
auto script = ClassicScript::create(m_document->url().to_string(), source_text, document().relevant_settings_object(), AK::URL(), m_source_line_number);
// FIXME: Pass options.
auto script = ClassicScript::create(m_document->url().to_string(), source_text, document().relevant_settings_object(), base_url, m_source_line_number);
// 2. Set the script's script to script.
m_script = script;
@ -315,10 +326,15 @@ void HTMLScriptElement::prepare_script()
// 3. The script is ready.
script_became_ready();
} else if (m_script_type == ScriptType::Module) {
// FIXME: -> "module"
// 1. Fetch an inline module script graph, given source text, base URL, settings object, and options.
// When this asynchronously completes, set the script's script to the result. At that time, the script is ready.
TODO();
// FIXME: 1. Set el's delaying the load event to true.
// 2. Fetch an inline module script graph, given source text, base URL, settings object, options, and with the following steps given result:
// FIXME: Pass options
fetch_inline_module_script_graph(m_document->url().to_string(), source_text, base_url, document().relevant_settings_object(), [this](auto const* result) {
// 1. Mark as ready el given result.
m_script = result;
script_became_ready();
});
}
}