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834202aeb9
This needs to happen before prototype/constructor intitialization can be made lazy. Otherwise, GC could run during the C++ constructor and try to collect the object currently being created.
113 lines
3.2 KiB
C++
113 lines
3.2 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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*
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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/Layout/BlockContainer.h>
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#include <LibWeb/Layout/Node.h>
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#include <LibWeb/Layout/Progress.h>
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namespace Web::HTML {
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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"));
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}
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JS::GCPtr<Layout::Node> HTMLProgressElement::create_layout_node(NonnullRefPtr<CSS::StyleProperties> style)
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{
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if (style->appearance().value_or(CSS::Appearance::Auto) == CSS::Appearance::None)
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return HTMLElement::create_layout_node(style);
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return heap().allocate_without_realm<Layout::Progress>(document(), *this, move(style));
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}
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bool HTMLProgressElement::using_system_appearance() const
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{
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if (layout_node())
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return is<Layout::Progress>(*layout_node());
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return false;
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}
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void HTMLProgressElement::progress_position_updated()
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{
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if (using_system_appearance())
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layout_node()->set_needs_display();
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else
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document().invalidate_layout();
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}
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double HTMLProgressElement::value() const
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{
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auto const& value_characters = attribute(HTML::AttributeNames::value);
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if (value_characters == nullptr)
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return 0;
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// https://html.spec.whatwg.org/multipage/common-microsyntaxes.html#rules-for-parsing-floating-point-number-values
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// 6. Skip ASCII whitespace within input given position.
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auto maybe_double = value_characters.to_double(AK::TrimWhitespace::Yes);
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if (!maybe_double.has_value())
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return 0;
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if (!isfinite(maybe_double.value()) || maybe_double.value() < 0)
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return 0;
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return min(maybe_double.value(), max());
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}
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void HTMLProgressElement::set_value(double value)
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{
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if (value < 0)
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return;
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MUST(set_attribute(HTML::AttributeNames::value, DeprecatedString::number(value)));
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progress_position_updated();
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}
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double HTMLProgressElement::max() const
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{
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auto const& max_characters = attribute(HTML::AttributeNames::max);
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if (max_characters == nullptr)
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return 1;
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// https://html.spec.whatwg.org/multipage/common-microsyntaxes.html#rules-for-parsing-floating-point-number-values
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// 6. Skip ASCII whitespace within input given position.
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auto double_or_none = max_characters.to_double(AK::TrimWhitespace::Yes);
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if (!double_or_none.has_value())
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return 1;
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if (!isfinite(double_or_none.value()) || double_or_none.value() <= 0)
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return 1;
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return double_or_none.value();
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}
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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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MUST(set_attribute(HTML::AttributeNames::max, DeprecatedString::number(value)));
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progress_position_updated();
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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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}
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