e4df1b223f
HTMLCollection is an awkward legacy interface from the DOM spec. It provides a live view of a DOM subtree, with some kind of filtering that determines which elements are part of the collection. We now return HTMLCollection objects from these APIs: - getElementsByClassName() - getElementsByName() - getElementsByTagName() This initial implementation does not do any kind of caching, since that is quite a tricky problem, and there will be plenty of time for tricky problems later on when the engine is more mature.
114 lines
3.9 KiB
C++
114 lines
3.9 KiB
C++
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/FlyString.h>
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#include <AK/String.h>
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#include <LibWeb/DOM/Attribute.h>
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#include <LibWeb/DOM/ExceptionOr.h>
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#include <LibWeb/DOM/NonDocumentTypeChildNode.h>
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#include <LibWeb/DOM/ParentNode.h>
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#include <LibWeb/HTML/AttributeNames.h>
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#include <LibWeb/HTML/TagNames.h>
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#include <LibWeb/Layout/Node.h>
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#include <LibWeb/QualifiedName.h>
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namespace Web::DOM {
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class Element
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: public ParentNode
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, public NonDocumentTypeChildNode<Element> {
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public:
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using WrapperType = Bindings::ElementWrapper;
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Element(Document&, QualifiedName);
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virtual ~Element() override;
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virtual FlyString node_name() const final { return m_qualified_name.local_name(); }
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const FlyString& local_name() const { return m_qualified_name.local_name(); }
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// NOTE: This is for the JS bindings
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const FlyString& tag_name() const { return local_name(); }
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const FlyString& prefix() const { return m_qualified_name.prefix(); }
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const FlyString& namespace_() const { return m_qualified_name.namespace_(); }
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// NOTE: This is for the JS bindings
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const FlyString& namespace_uri() const { return namespace_(); }
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bool has_attribute(const FlyString& name) const { return !attribute(name).is_null(); }
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bool has_attributes() const { return !m_attributes.is_empty(); }
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String attribute(const FlyString& name) const;
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String get_attribute(const FlyString& name) const { return attribute(name); }
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ExceptionOr<void> set_attribute(const FlyString& name, const String& value);
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void remove_attribute(const FlyString& name);
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template<typename Callback>
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void for_each_attribute(Callback callback) const
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{
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for (auto& attribute : m_attributes)
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callback(attribute.name(), attribute.value());
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}
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bool has_class(const FlyString&, CaseSensitivity = CaseSensitivity::CaseSensitive) const;
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const Vector<FlyString>& class_names() const { return m_classes; }
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virtual void apply_presentational_hints(CSS::StyleProperties&) const { }
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virtual void parse_attribute(const FlyString& name, const String& value);
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void recompute_style();
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Layout::NodeWithStyle* layout_node() { return static_cast<Layout::NodeWithStyle*>(Node::layout_node()); }
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const Layout::NodeWithStyle* layout_node() const { return static_cast<const Layout::NodeWithStyle*>(Node::layout_node()); }
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String name() const { return attribute(HTML::AttributeNames::name); }
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const CSS::StyleProperties* specified_css_values() const { return m_specified_css_values.ptr(); }
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NonnullRefPtr<CSS::StyleProperties> computed_style();
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const CSS::CSSStyleDeclaration* inline_style() const { return m_inline_style; }
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NonnullRefPtr<CSS::CSSStyleDeclaration> style_for_bindings();
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// FIXME: innerHTML also appears on shadow roots. https://w3c.github.io/DOM-Parsing/#dom-innerhtml
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String inner_html() const;
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void set_inner_html(StringView);
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bool is_focused() const;
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virtual bool is_focusable() const { return false; }
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NonnullRefPtr<HTMLCollection> get_elements_by_tag_name(FlyString const&);
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NonnullRefPtr<HTMLCollection> get_elements_by_class_name(FlyString const&);
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ShadowRoot* shadow_root() { return m_shadow_root; }
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const ShadowRoot* shadow_root() const { return m_shadow_root; }
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void set_shadow_root(RefPtr<ShadowRoot>);
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protected:
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RefPtr<Layout::Node> create_layout_node() override;
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private:
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Attribute* find_attribute(const FlyString& name);
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const Attribute* find_attribute(const FlyString& name) const;
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QualifiedName m_qualified_name;
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Vector<Attribute> m_attributes;
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RefPtr<CSS::CSSStyleDeclaration> m_inline_style;
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RefPtr<CSS::StyleProperties> m_specified_css_values;
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Vector<FlyString> m_classes;
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RefPtr<ShadowRoot> m_shadow_root;
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};
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template<>
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inline bool Node::fast_is<Element>() const { return is_element(); }
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}
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