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https://github.com/LadybirdBrowser/ladybird
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Previously, the LibWeb bindings generator would output multiple per interface files like Prototype/Constructor/Namespace/GlobalMixin depending on the contents of that IDL file. This complicates the build system as it means that it does not know what files will be generated without knowledge of the contents of that IDL file. Instead, for each IDL file only generate a single Bindings/<IDLFile>.h and Bindings/<IDLFile>.cpp.
115 lines
4.7 KiB
C++
115 lines
4.7 KiB
C++
/*
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* Copyright (c) 2025, Sam Atkins <sam@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "CSSVariableReferenceValue.h"
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#include <LibWeb/Bindings/CSSVariableReferenceValue.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/CSS/CSSUnparsedValue.h>
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#include <LibWeb/CSS/PropertyName.h>
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#include <LibWeb/HTML/CustomElements/CustomElementName.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::CSS {
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GC_DEFINE_ALLOCATOR(CSSVariableReferenceValue);
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GC::Ref<CSSVariableReferenceValue> CSSVariableReferenceValue::create(JS::Realm& realm, FlyString variable, GC::Ptr<CSSUnparsedValue> fallback)
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{
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return realm.create<CSSVariableReferenceValue>(realm, move(variable), move(fallback));
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}
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// https://drafts.css-houdini.org/css-typed-om-1/#dom-cssvariablereferencevalue-cssvariablereferencevalue
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WebIDL::ExceptionOr<GC::Ref<CSSVariableReferenceValue>> CSSVariableReferenceValue::construct_impl(JS::Realm& realm, FlyString variable, GC::Ptr<CSSUnparsedValue> fallback)
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{
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// The CSSVariableReferenceValue(variable, fallback) constructor must, when called, perform the following steps:
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// 1. If variable is not a custom property name string, throw a TypeError.
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if (!is_a_custom_property_name_string(variable))
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return WebIDL::SimpleException { WebIDL::SimpleExceptionType::TypeError, MUST(String::formatted("'{}' is not a valid CSS custom property name", variable)) };
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// 2. Return a new CSSVariableReferenceValue with its variable internal slot set to variable and its fallback internal slot set to fallback.
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return CSSVariableReferenceValue::create(realm, move(variable), move(fallback));
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}
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CSSVariableReferenceValue::CSSVariableReferenceValue(JS::Realm& realm, FlyString variable, GC::Ptr<CSSUnparsedValue> fallback)
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: Bindings::PlatformObject(realm)
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, m_variable(move(variable))
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, m_fallback(move(fallback))
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{
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}
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CSSVariableReferenceValue::~CSSVariableReferenceValue() = default;
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void CSSVariableReferenceValue::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(CSSVariableReferenceValue);
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Base::initialize(realm);
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}
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void CSSVariableReferenceValue::visit_edges(Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_fallback);
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}
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// https://drafts.css-houdini.org/css-typed-om-1/#dom-cssvariablereferencevalue-variable
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String CSSVariableReferenceValue::variable() const
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{
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// The getter for the variable attribute of a CSSVariableReferenceValue this must return its variable internal slot.
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return m_variable.to_string();
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}
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// https://drafts.css-houdini.org/css-typed-om-1/#dom-cssvariablereferencevalue-variable
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WebIDL::ExceptionOr<void> CSSVariableReferenceValue::set_variable(FlyString variable)
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{
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// The variable attribute of a CSSVariableReferenceValue this must, on setting a variable variable, perform the following steps:
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// 1. If variable is not a custom property name string, throw a TypeError.
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if (!is_a_custom_property_name_string(variable))
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return WebIDL::SimpleException { WebIDL::SimpleExceptionType::TypeError, MUST(String::formatted("'{}' is not a valid CSS custom property name", variable)) };
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// 2. Otherwise, set this’s variable internal slot to variable.
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m_variable = move(variable);
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return {};
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}
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// https://drafts.css-houdini.org/css-typed-om-1/#dom-cssvariablereferencevalue-fallback
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GC::Ptr<CSSUnparsedValue> CSSVariableReferenceValue::fallback() const
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{
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// AD-HOC: No spec algorithm, see https://github.com/w3c/css-houdini-drafts/issues/1146#issuecomment-3188550133
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return m_fallback;
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}
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// https://drafts.css-houdini.org/css-typed-om-1/#dom-cssvariablereferencevalue-fallback
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WebIDL::ExceptionOr<void> CSSVariableReferenceValue::set_fallback(GC::Ptr<CSSUnparsedValue> fallback)
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{
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// AD-HOC: No spec algorithm, see https://github.com/w3c/css-houdini-drafts/issues/1146#issuecomment-3188550133
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m_fallback = move(fallback);
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return {};
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}
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// https://drafts.css-houdini.org/css-typed-om-1/#serialize-a-cssvariablereferencevalue
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WebIDL::ExceptionOr<String> CSSVariableReferenceValue::to_string() const
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{
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// To serialize a CSSVariableReferenceValue this:
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// 1. Let s initially be "var(".
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StringBuilder s;
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s.append("var("sv);
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// 2. Append this’s variable internal slot to s.
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s.append(m_variable);
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// 3. If this’s fallback internal slot is not null, append ", " to s, then serialize the fallback internal slot and append it to s.
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if (m_fallback) {
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// AD-HOC: Tested behaviour requires we append "," without the space. https://github.com/w3c/css-houdini-drafts/issues/1148
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s.append(","sv);
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s.append(TRY(m_fallback->to_string()));
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}
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// 4. Append ")" to s and return s.
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s.append(")"sv);
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return s.to_string_without_validation();
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}
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}
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