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LibWeb: Reuse attribute lookups in HTMLScriptElement::prepare_script

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Switch over from deprecated_attribute to attribute, and reuse the result
of this lookup for both checking whether that attribute exists - and for
retrieving the value of that attribute when we need it.
This commit is contained in:
Shannon Booth 2024-01-13 20:12:18 +13:00 • committed by Andreas Kling
parent f9a7535fb8
commit 44089ce284
1 changed files with 13 additions and 13 deletions
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26
Userland/Libraries/LibWeb/HTML/HTMLScriptElement.cpp
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@ -108,7 +108,7 @@ void HTMLScriptElement::execute_script()
document->set_current_script({}, nullptr);
if (m_from_an_external_file)
dbgln_if(HTML_SCRIPT_DEBUG, "HTMLScriptElement: Running script {}", deprecated_attribute(HTML::AttributeNames::src));
dbgln_if(HTML_SCRIPT_DEBUG, "HTMLScriptElement: Running script {}", attribute(HTML::AttributeNames::src).value_or(String {}));
else
dbgln_if(HTML_SCRIPT_DEBUG, "HTMLScriptElement: Running inline script");
@ -177,28 +177,28 @@ void HTMLScriptElement::prepare_script()
// - el has a type attribute whose value is the empty string;
// - el has no type attribute but it has a language attribute and that attribute's value is the empty string; or
// - el has neither a type attribute nor a language attribute
ByteString script_block_type;
bool has_type_attribute = has_attribute(HTML::AttributeNames::type);
bool has_language_attribute = has_attribute(HTML::AttributeNames::language);
if ((has_type_attribute && deprecated_attribute(HTML::AttributeNames::type).is_empty())
|| (!has_type_attribute && has_language_attribute && deprecated_attribute(HTML::AttributeNames::language).is_empty())
|| (!has_type_attribute && !has_language_attribute)) {
String script_block_type;
auto maybe_type_attribute = attribute(HTML::AttributeNames::type);
auto maybe_language_attribute = attribute(HTML::AttributeNames::language);
if ((maybe_type_attribute.has_value() && maybe_type_attribute->is_empty())
|| (!maybe_type_attribute.has_value() && maybe_language_attribute.has_value() && maybe_language_attribute->is_empty())
|| (!maybe_type_attribute.has_value() && !maybe_language_attribute.has_value())) {
// then let the script block's type string for this script element be "text/javascript".
script_block_type = "text/javascript";
script_block_type = "text/javascript"_string;
}
// Otherwise, if el has a type attribute,
else if (has_type_attribute) {
else if (maybe_type_attribute.has_value()) {
// then let the script block's type string be the value of that attribute with leading and trailing ASCII whitespace stripped.
script_block_type = deprecated_attribute(HTML::AttributeNames::type).trim(Infra::ASCII_WHITESPACE);
script_block_type = MUST(maybe_type_attribute->trim(Infra::ASCII_WHITESPACE));
}
// Otherwise, el has a non-empty language attribute;
else if (!deprecated_attribute(HTML::AttributeNames::language).is_empty()) {
else if (maybe_language_attribute.has_value() && !maybe_language_attribute->is_empty()) {
// let the script block's type string be the concatenation of "text/" and the value of el's language attribute.
script_block_type = ByteString::formatted("text/{}", deprecated_attribute(HTML::AttributeNames::language));
script_block_type = MUST(String::formatted("text/{}", maybe_language_attribute.value()));
}
// 9. If the script block's type string is a JavaScript MIME type essence match,
if (MimeSniff::is_javascript_mime_type_essence_match(script_block_type.trim(Infra::ASCII_WHITESPACE))) {
if (MimeSniff::is_javascript_mime_type_essence_match(MUST(script_block_type.trim(Infra::ASCII_WHITESPACE)))) {
// then set el's type to "classic".
m_script_type = ScriptType::Classic;
}