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LibWeb: Correct serialization of steps() easing functions

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This commit is contained in:
Pavel Shliak 2024-11-18 19:41:33 +04:00 • committed by Tim Flynn
commit 8cd514d83c
Notes: github-actions[bot] 2024-11-18 22:39:58 +00:00
3 changed files with 51 additions and 2 deletions
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8
Libraries/LibWeb/CSS/StyleValues/EasingStyleValue.cpp
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@ -315,6 +315,7 @@ double EasingStyleValue::CubicBezier::evaluate_at(double input_progress, bool) c
return sample1.y + factor * (sample2.y - sample1.y);
}
// https://drafts.csswg.org/css-easing/#bezier-serialization
String EasingStyleValue::CubicBezier::to_string() const
{
StringBuilder builder;
@ -377,13 +378,16 @@ double EasingStyleValue::Steps::evaluate_at(double input_progress, bool before_f
return current_step / jumps;
}
// https://drafts.csswg.org/css-easing/#steps-serialization
String EasingStyleValue::Steps::to_string() const
{
StringBuilder builder;
// Unlike the other easing function keywords, step-start and step-end do not serialize as themselves.
// Instead, they serialize as "steps(1, start)" and "steps(1)", respectively.
if (*this == Steps::step_start()) {
builder.append("step-start"sv);
builder.append("steps(1, start)"sv);
} else if (*this == Steps::step_end()) {
builder.append("step-end"sv);
builder.append("steps(1)"sv);
} else {
auto position = [&] -> Optional<StringView> {
switch (this->position) {