122 lines
3.5 KiB
C++
122 lines
3.5 KiB
C++
/*
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* Copyright (c) 2020-2022, the SerenityOS developers.
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* Copyright (c) 2022, MacDue <macdue@dueutil.tech>
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* Copyright (c) 2023, Bastiaan van der Plaat <bastiaan.v.d.plaat@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/ShadowRoot.h>
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#include <LibWeb/HTML/HTMLProgressElement.h>
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#include <LibWeb/HTML/Numbers.h>
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namespace Web::HTML {
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JS_DEFINE_ALLOCATOR(HTMLProgressElement);
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HTMLProgressElement::HTMLProgressElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: HTMLElement(document, move(qualified_name))
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{
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}
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HTMLProgressElement::~HTMLProgressElement() = default;
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void HTMLProgressElement::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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set_prototype(&Bindings::ensure_web_prototype<Bindings::HTMLProgressElementPrototype>(realm, "HTMLProgressElement"_fly_string));
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}
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void HTMLProgressElement::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_progress_value_element);
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}
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// https://html.spec.whatwg.org/multipage/form-elements.html#dom-progress-value
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double HTMLProgressElement::value() const
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{
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auto maybe_value_string = get_attribute(HTML::AttributeNames::value);
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if (!maybe_value_string.has_value())
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return 0;
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auto maybe_value = parse_floating_point_number(maybe_value_string.value());
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if (!maybe_value.has_value())
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return 0;
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return clamp(maybe_value.value(), 0, max());
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}
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WebIDL::ExceptionOr<void> HTMLProgressElement::set_value(double value)
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{
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if (value < 0 || value > max())
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return {};
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TRY(set_attribute(HTML::AttributeNames::value, MUST(String::number(value))));
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update_progress_value_element();
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document().invalidate_layout();
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return {};
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}
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// https://html.spec.whatwg.org/multipage/form-elements.html#dom-progress-max
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double HTMLProgressElement::max() const
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{
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auto maybe_max_string = get_attribute(HTML::AttributeNames::max);
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if (!maybe_max_string.has_value())
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return 1;
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auto maybe_max = parse_floating_point_number(maybe_max_string.value());
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if (!maybe_max.has_value())
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return 1;
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return AK::max(maybe_max.value(), 0);
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}
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WebIDL::ExceptionOr<void> HTMLProgressElement::set_max(double value)
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{
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if (value <= 0)
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return {};
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TRY(set_attribute(HTML::AttributeNames::max, MUST(String::number(value))));
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update_progress_value_element();
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document().invalidate_layout();
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return {};
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}
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double HTMLProgressElement::position() const
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{
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if (!is_determinate())
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return -1;
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return value() / max();
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}
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void HTMLProgressElement::inserted()
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{
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create_shadow_tree_if_needed();
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}
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void HTMLProgressElement::removed_from(DOM::Node*)
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{
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set_shadow_root(nullptr);
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}
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void HTMLProgressElement::create_shadow_tree_if_needed()
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{
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if (shadow_root_internal())
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return;
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auto shadow_root = heap().allocate<DOM::ShadowRoot>(realm(), document(), *this, Bindings::ShadowRootMode::Closed);
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set_shadow_root(shadow_root);
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auto progress_bar_element = heap().allocate<ProgressBarElement>(realm(), document());
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MUST(shadow_root->append_child(*progress_bar_element));
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m_progress_value_element = heap().allocate<ProgressValueElement>(realm(), document());
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MUST(progress_bar_element->append_child(*m_progress_value_element));
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update_progress_value_element();
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}
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void HTMLProgressElement::update_progress_value_element()
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{
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MUST(m_progress_value_element->set_attribute(HTML::AttributeNames::style, MUST(String::formatted("width: {}%;", position() * 100))));
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}
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}
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