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a27d269721
Previously, some StyleValues created a large number of intermediate strings during serialization. Passing a StringBUilder into the serialization function allows us to avoid a large number of these unnecessary allocations.
62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
/*
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* Copyright (c) 2025, Sam Atkins <sam@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "AbstractImageStyleValue.h"
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#include <LibWeb/CSS/CSSImageValue.h>
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namespace Web::CSS {
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// https://drafts.css-houdini.org/css-typed-om-1/#reify-stylevalue
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GC::Ref<CSSStyleValue> AbstractImageStyleValue::reify(JS::Realm& realm, FlyString const&) const
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{
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// AD-HOC: There's no spec description of how to reify as a CSSImageValue.
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return CSSImageValue::create(realm, *this);
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}
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ColorStopListElement ColorStopListElement::absolutized(ComputationContext const& context) const
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{
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auto absolutize_if_nonnull = [&context](RefPtr<StyleValue const> const& input) -> RefPtr<StyleValue const> {
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if (!input)
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return {};
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return input->absolutized(context);
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};
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return {
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.transition_hint = absolutize_if_nonnull(transition_hint),
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.color_stop = {
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.color = absolutize_if_nonnull(color_stop.color),
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.position = absolutize_if_nonnull(color_stop.position),
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.second_position = absolutize_if_nonnull(color_stop.second_position),
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},
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};
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}
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void serialize_color_stop_list(StringBuilder& builder, Vector<ColorStopListElement> const& color_stop_list, SerializationMode mode)
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{
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bool first = true;
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for (auto const& element : color_stop_list) {
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if (!first)
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builder.append(", "sv);
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if (element.transition_hint) {
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element.transition_hint->serialize(builder, mode);
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builder.append(", "sv);
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}
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element.color_stop.color->serialize(builder, mode);
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if (element.color_stop.position) {
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builder.append(' ');
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element.color_stop.position->serialize(builder, mode);
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}
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if (element.color_stop.second_position) {
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builder.append(' ');
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element.color_stop.second_position->serialize(builder, mode);
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}
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first = false;
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}
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}
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}
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