mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 13:22:43 +00:00
20e2c9a7dd
Instead of recomputing the state whenever someone asks for it, we now cache it when the attribute is added/changed/removed. Before this change, HTMLElement::is_editable() was 6.5% of CPU time when furiously resizing Hacker News. After, it's less than 0.5%. :^)
101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
/*
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* Copyright (c) 2018-2022, 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 <LibWeb/DOM/Element.h>
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#include <LibWeb/HTML/EventNames.h>
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#include <LibWeb/HTML/GlobalEventHandlers.h>
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namespace Web::HTML {
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// https://html.spec.whatwg.org/multipage/dom.html#attr-dir
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#define ENUMERATE_HTML_ELEMENT_DIR_ATTRIBUTES \
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__ENUMERATE_HTML_ELEMENT_DIR_ATTRIBUTE(ltr) \
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__ENUMERATE_HTML_ELEMENT_DIR_ATTRIBUTE(rtl) \
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__ENUMERATE_HTML_ELEMENT_DIR_ATTRIBUTE(auto)
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class HTMLElement
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: public DOM::Element
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, public HTML::GlobalEventHandlers {
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WEB_PLATFORM_OBJECT(HTMLElement, DOM::Element);
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public:
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virtual ~HTMLElement() override;
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DeprecatedString title() const { return attribute(HTML::AttributeNames::title); }
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DeprecatedString dir() const;
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void set_dir(DeprecatedString const&);
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virtual bool is_editable() const final;
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DeprecatedString content_editable() const;
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WebIDL::ExceptionOr<void> set_content_editable(DeprecatedString const&);
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DeprecatedString inner_text();
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void set_inner_text(StringView);
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int offset_top() const;
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int offset_left() const;
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int offset_width() const;
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int offset_height() const;
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bool cannot_navigate() const;
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DOMStringMap* dataset() { return m_dataset.ptr(); }
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DOMStringMap const* dataset() const { return m_dataset.ptr(); }
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void focus();
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void click();
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void blur();
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bool fire_a_synthetic_pointer_event(FlyString const& type, DOM::Element& target, bool not_trusted);
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// https://html.spec.whatwg.org/multipage/forms.html#category-label
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virtual bool is_labelable() const { return false; }
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virtual Optional<ARIA::Role> default_role() const override;
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protected:
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HTMLElement(DOM::Document&, DOM::QualifiedName);
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virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
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virtual void parse_attribute(DeprecatedFlyString const& name, DeprecatedString const& value) override;
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virtual void did_remove_attribute(DeprecatedFlyString const& name) override;
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virtual void visit_edges(Cell::Visitor&) override;
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private:
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virtual bool is_html_element() const final { return true; }
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// ^HTML::GlobalEventHandlers
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virtual DOM::EventTarget& global_event_handlers_to_event_target(FlyString const&) override { return *this; }
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enum class ContentEditableState {
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True,
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False,
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Inherit,
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};
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ContentEditableState m_content_editable_state { ContentEditableState::Inherit };
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JS::GCPtr<DOMStringMap> m_dataset;
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// https://html.spec.whatwg.org/multipage/interaction.html#locked-for-focus
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bool m_locked_for_focus { false };
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// https://html.spec.whatwg.org/multipage/interaction.html#click-in-progress-flag
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bool m_click_in_progress { false };
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};
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}
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namespace Web::DOM {
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template<>
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inline bool Node::fast_is<HTML::HTMLElement>() const { return is_html_element(); }
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}
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