mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-10-04 15:19:16 +00:00
6428c9990d
We don't serialize these the way WPT expects, because we don't implement the comment-insertion rules from CSS-Syntax. We don't implement that for regular serialization either, so it's something we can worry about later.
114 lines
4.7 KiB
C++
114 lines
4.7 KiB
C++
/*
|
||
* Copyright (c) 2025, Sam Atkins <sam@ladybird.org>
|
||
*
|
||
* SPDX-License-Identifier: BSD-2-Clause
|
||
*/
|
||
|
||
#include "CSSVariableReferenceValue.h"
|
||
#include <LibWeb/Bindings/CSSVariableReferenceValuePrototype.h>
|
||
#include <LibWeb/Bindings/Intrinsics.h>
|
||
#include <LibWeb/CSS/CSSUnparsedValue.h>
|
||
#include <LibWeb/CSS/PropertyName.h>
|
||
#include <LibWeb/HTML/CustomElements/CustomElementName.h>
|
||
#include <LibWeb/WebIDL/ExceptionOr.h>
|
||
|
||
namespace Web::CSS {
|
||
|
||
GC_DEFINE_ALLOCATOR(CSSVariableReferenceValue);
|
||
GC::Ref<CSSVariableReferenceValue> CSSVariableReferenceValue::create(JS::Realm& realm, FlyString variable, GC::Ptr<CSSUnparsedValue> fallback)
|
||
{
|
||
return realm.create<CSSVariableReferenceValue>(realm, move(variable), move(fallback));
|
||
}
|
||
|
||
// https://drafts.css-houdini.org/css-typed-om-1/#dom-cssvariablereferencevalue-cssvariablereferencevalue
|
||
WebIDL::ExceptionOr<GC::Ref<CSSVariableReferenceValue>> CSSVariableReferenceValue::construct_impl(JS::Realm& realm, FlyString variable, GC::Ptr<CSSUnparsedValue> fallback)
|
||
{
|
||
// The CSSVariableReferenceValue(variable, fallback) constructor must, when called, perform the following steps:
|
||
// 1. If variable is not a custom property name string, throw a TypeError.
|
||
if (!is_a_custom_property_name_string(variable))
|
||
return WebIDL::SimpleException { WebIDL::SimpleExceptionType::TypeError, MUST(String::formatted("'{}' is not a valid CSS custom property name", variable)) };
|
||
|
||
// 2. Return a new CSSVariableReferenceValue with its variable internal slot set to variable and its fallback internal slot set to fallback.
|
||
return CSSVariableReferenceValue::create(realm, move(variable), move(fallback));
|
||
}
|
||
|
||
CSSVariableReferenceValue::CSSVariableReferenceValue(JS::Realm& realm, FlyString variable, GC::Ptr<CSSUnparsedValue> fallback)
|
||
: Bindings::PlatformObject(realm)
|
||
, m_variable(move(variable))
|
||
, m_fallback(move(fallback))
|
||
{
|
||
}
|
||
|
||
CSSVariableReferenceValue::~CSSVariableReferenceValue() = default;
|
||
|
||
void CSSVariableReferenceValue::initialize(JS::Realm& realm)
|
||
{
|
||
WEB_SET_PROTOTYPE_FOR_INTERFACE(CSSVariableReferenceValue);
|
||
Base::initialize(realm);
|
||
}
|
||
|
||
void CSSVariableReferenceValue::visit_edges(Visitor& visitor)
|
||
{
|
||
Base::visit_edges(visitor);
|
||
visitor.visit(m_fallback);
|
||
}
|
||
|
||
// https://drafts.css-houdini.org/css-typed-om-1/#dom-cssvariablereferencevalue-variable
|
||
String CSSVariableReferenceValue::variable() const
|
||
{
|
||
// The getter for the variable attribute of a CSSVariableReferenceValue this must return its variable internal slot.
|
||
return m_variable.to_string();
|
||
}
|
||
|
||
// https://drafts.css-houdini.org/css-typed-om-1/#dom-cssvariablereferencevalue-variable
|
||
WebIDL::ExceptionOr<void> CSSVariableReferenceValue::set_variable(FlyString variable)
|
||
{
|
||
// The variable attribute of a CSSVariableReferenceValue this must, on setting a variable variable, perform the following steps:
|
||
// 1. If variable is not a custom property name string, throw a TypeError.
|
||
if (!is_a_custom_property_name_string(variable))
|
||
return WebIDL::SimpleException { WebIDL::SimpleExceptionType::TypeError, MUST(String::formatted("'{}' is not a valid CSS custom property name", variable)) };
|
||
|
||
// 2. Otherwise, set this’s variable internal slot to variable.
|
||
m_variable = move(variable);
|
||
return {};
|
||
}
|
||
|
||
// https://drafts.css-houdini.org/css-typed-om-1/#dom-cssvariablereferencevalue-fallback
|
||
GC::Ptr<CSSUnparsedValue> CSSVariableReferenceValue::fallback() const
|
||
{
|
||
// AD-HOC: No spec algorithm, see https://github.com/w3c/css-houdini-drafts/issues/1146#issuecomment-3188550133
|
||
return m_fallback;
|
||
}
|
||
|
||
// https://drafts.css-houdini.org/css-typed-om-1/#dom-cssvariablereferencevalue-fallback
|
||
WebIDL::ExceptionOr<void> CSSVariableReferenceValue::set_fallback(GC::Ptr<CSSUnparsedValue> fallback)
|
||
{
|
||
// AD-HOC: No spec algorithm, see https://github.com/w3c/css-houdini-drafts/issues/1146#issuecomment-3188550133
|
||
m_fallback = move(fallback);
|
||
return {};
|
||
}
|
||
|
||
// https://drafts.css-houdini.org/css-typed-om-1/#serialize-a-cssvariablereferencevalue
|
||
String CSSVariableReferenceValue::to_string() const
|
||
{
|
||
// To serialize a CSSVariableReferenceValue this:
|
||
// 1. Let s initially be "var(".
|
||
StringBuilder s;
|
||
s.append("var("sv);
|
||
|
||
// 2. Append this’s variable internal slot to s.
|
||
s.append(m_variable);
|
||
|
||
// 3. If this’s fallback internal slot is not null, append ", " to s, then serialize the fallback internal slot and append it to s.
|
||
if (m_fallback) {
|
||
// AD-HOC: Tested behaviour requires we append "," without the space. https://github.com/w3c/css-houdini-drafts/issues/1148
|
||
s.append(","sv);
|
||
s.append(m_fallback->to_string());
|
||
}
|
||
|
||
// 4. Append ")" to s and return s.
|
||
s.append(")"sv);
|
||
return s.to_string_without_validation();
|
||
}
|
||
|
||
}
|