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