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360c0eb509
In general it is not safe to convert any arbitrary floating-point value to CSSPixels. CSSPixels has a resolution of 0.015625, which for small values (e.g. scale factors between 0 and 1), can produce bad results if converted to CSSPixels then scaled back up. In the worst case values can underflow to zero and produce incorrect results.
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
/*
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* Copyright (c) 2020, 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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#include <LibGfx/Font/Font.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/Layout/ButtonBox.h>
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#include <LibWeb/Painting/ButtonPaintable.h>
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namespace Web::Layout {
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ButtonBox::ButtonBox(DOM::Document& document, HTML::HTMLInputElement& element, NonnullRefPtr<CSS::StyleProperties> style)
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: FormAssociatedLabelableNode(document, element, move(style))
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{
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}
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ButtonBox::~ButtonBox() = default;
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void ButtonBox::prepare_for_replaced_layout()
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{
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// For <input type="submit" /> and <input type="button" />, the contents of
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// the button does not appear as the contents of the element but as the
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// value attribute. This is not the case with <button />, which contains
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// its contents normally.
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if (is<HTML::HTMLInputElement>(dom_node())) {
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set_natural_width(CSSPixels(font().width(static_cast<HTML::HTMLInputElement&>(dom_node()).value())));
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set_natural_height(font().pixel_size_rounded_up());
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}
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}
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JS::GCPtr<Painting::Paintable> ButtonBox::create_paintable() const
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{
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return Painting::ButtonPaintable::create(*this);
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}
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}
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