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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.
72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022-2023, 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/CSS/Serialize.h>
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#include <LibWeb/CSS/StyleValues/KeywordStyleValue.h>
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#include <LibWeb/CSS/StyleValues/LengthStyleValue.h>
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#include <LibWeb/CSS/StyleValues/ShadowStyleValue.h>
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namespace Web::CSS {
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void ShadowStyleValue::serialize(StringBuilder& builder, SerializationMode mode) const
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{
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if (m_properties.color) {
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m_properties.color->serialize(builder, mode);
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builder.append(' ');
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}
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m_properties.offset_x->serialize(builder, mode);
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builder.append(' ');
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m_properties.offset_y->serialize(builder, mode);
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if (m_properties.blur_radius) {
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builder.append(' ');
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m_properties.blur_radius->serialize(builder, mode);
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}
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if (m_properties.spread_distance && m_properties.shadow_type == ShadowType::Normal) {
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builder.append(' ');
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m_properties.spread_distance->serialize(builder, mode);
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}
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if (m_properties.placement == ShadowPlacement::Inner)
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builder.append(" inset"sv);
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}
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ValueComparingNonnullRefPtr<StyleValue const> ShadowStyleValue::color() const
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{
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if (!m_properties.color)
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return KeywordStyleValue::create(Keyword::Currentcolor);
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return *m_properties.color;
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}
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ValueComparingNonnullRefPtr<StyleValue const> ShadowStyleValue::blur_radius() const
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{
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if (!m_properties.blur_radius)
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return LengthStyleValue::create(Length::make_px(0));
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return *m_properties.blur_radius;
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}
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ValueComparingNonnullRefPtr<StyleValue const> ShadowStyleValue::spread_distance() const
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{
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if (!m_properties.spread_distance)
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return LengthStyleValue::create(Length::make_px(0));
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return *m_properties.spread_distance;
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}
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ValueComparingNonnullRefPtr<StyleValue const> ShadowStyleValue::absolutized(ComputationContext const& computation_context) const
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{
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auto absolutized_offset_x = offset_x()->absolutized(computation_context);
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auto absolutized_offset_y = offset_y()->absolutized(computation_context);
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auto absolutized_blur_radius = blur_radius()->absolutized(computation_context);
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auto absolutized_spread_distance = spread_distance()->absolutized(computation_context);
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return create(m_properties.shadow_type, color(), absolutized_offset_x, absolutized_offset_y, absolutized_blur_radius, absolutized_spread_distance, placement());
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}
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}
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