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https://github.com/RGBCube/serenity
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c37820b898
https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
81 lines
1.9 KiB
C++
81 lines
1.9 KiB
C++
/*
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* Copyright (c) 2020-2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/HTML/HTMLProgressElement.h>
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#include <LibWeb/Layout/Progress.h>
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#include <stdlib.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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RefPtr<Layout::Node> HTMLProgressElement::create_layout_node(NonnullRefPtr<CSS::StyleProperties> style)
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{
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return adopt_ref(*new Layout::Progress(document(), *this, move(style)));
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}
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double HTMLProgressElement::value() const
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{
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auto value_characters = attribute(HTML::AttributeNames::value).characters();
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if (value_characters == nullptr)
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return 0;
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auto parsed_value = strtod(value_characters, nullptr);
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if (!isfinite(parsed_value) || parsed_value < 0)
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return 0;
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return min(parsed_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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set_attribute(HTML::AttributeNames::value, String::number(value));
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if (layout_node())
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layout_node()->set_needs_display();
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}
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double HTMLProgressElement::max() const
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{
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auto max_characters = attribute(HTML::AttributeNames::max).characters();
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if (max_characters == nullptr)
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return 1;
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auto parsed_value = strtod(max_characters, nullptr);
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if (!isfinite(parsed_value) || parsed_value <= 0)
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return 1;
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return parsed_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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set_attribute(HTML::AttributeNames::max, String::number(value));
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if (layout_node())
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layout_node()->set_needs_display();
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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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