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a6dfc74e93
Before this change, we were going through the chain of base classes for each IDL interface object and having them set the prototype to their prototype. Instead of doing that, reorder things so that we set the right prototype immediately in Foo::initialize(), and then don't bother in all the base class overrides. This knocks off a ~1% profile item on Speedometer 3.
83 lines
3.6 KiB
C++
83 lines
3.6 KiB
C++
/*
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* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Bindings/DOMParserPrototype.h>
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#include <LibWeb/Bindings/MainThreadVM.h>
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#include <LibWeb/DOM/XMLDocument.h>
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#include <LibWeb/HTML/DOMParser.h>
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#include <LibWeb/HTML/HTMLDocument.h>
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#include <LibWeb/HTML/Parser/HTMLParser.h>
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#include <LibWeb/HTML/Scripting/Environments.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/XML/XMLDocumentBuilder.h>
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namespace Web::HTML {
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GC_DEFINE_ALLOCATOR(DOMParser);
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WebIDL::ExceptionOr<GC::Ref<DOMParser>> DOMParser::construct_impl(JS::Realm& realm)
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{
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return realm.create<DOMParser>(realm);
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}
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DOMParser::DOMParser(JS::Realm& realm)
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: PlatformObject(realm)
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{
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}
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DOMParser::~DOMParser() = default;
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void DOMParser::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(DOMParser);
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Base::initialize(realm);
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}
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// https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring
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GC::Ref<DOM::Document> DOMParser::parse_from_string(StringView string, Bindings::DOMParserSupportedType type)
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{
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// FIXME: 1. Let compliantString to the result of invoking the Get Trusted Type compliant string algorithm with TrustedHTML, this's relevant global object, string, "DOMParser parseFromString", and "script".
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// 2. Let document be a new Document, whose content type is type and url is this's relevant global object's associated Document's URL.
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GC::Ptr<DOM::Document> document;
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// 3. Switch on type:
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if (type == Bindings::DOMParserSupportedType::Text_Html) {
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// -> "text/html"
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document = HTML::HTMLDocument::create(realm(), as<HTML::Window>(relevant_global_object(*this)).associated_document().url());
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document->set_content_type(Bindings::idl_enum_to_string(type));
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// 1. Parse HTML from a string given document and compliantString. FIXME: Use compliantString.
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document->parse_html_from_a_string(string);
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} else {
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// -> Otherwise
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document = DOM::XMLDocument::create(realm(), as<HTML::Window>(relevant_global_object(*this)).associated_document().url());
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document->set_content_type(Bindings::idl_enum_to_string(type));
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document->set_document_type(DOM::Document::Type::XML);
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// 1. Create an XML parser parse, associated with document, and with XML scripting support disabled.
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XML::Parser parser(string, { .resolve_external_resource = resolve_xml_resource });
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XMLDocumentBuilder builder { *document, XMLScriptingSupport::Disabled };
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// 2. Parse compliantString using parser. FIXME: Use compliantString.
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auto result = parser.parse_with_listener(builder);
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// 3. If the previous step resulted in an XML well-formedness or XML namespace well-formedness error, then:
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if (result.is_error() || builder.has_error()) {
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// NOTE: The XML parsing can produce nodes before it hits an error, just remove them.
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// 1. Assert: document has no child nodes.
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document->remove_all_children(true);
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// 2. Let root be the result of creating an element given document, "parsererror", and "http://www.mozilla.org/newlayout/xml/parsererror.xml".
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auto root = DOM::create_element(*document, "parsererror"_fly_string, "http://www.mozilla.org/newlayout/xml/parsererror.xml"_fly_string).release_value_but_fixme_should_propagate_errors();
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// FIXME: 3. Optionally, add attributes or children to root to describe the nature of the parsing error.
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// 4. Append root to document.
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MUST(document->append_child(*root));
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}
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}
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// 3. Return document.
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return *document;
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}
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}
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