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LibWeb: Transition StyleComputer to Web Animations

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With this commit, we are finally running animations off of the web
animations spec! A lot of the work StyleComputer is doing is now done
elsewhere. For example, fill-forward animations are handled by
Animation::is_relevant() returning true in the after phase, meaning the
"active_state_if_fill_forward" map is no longer needed.
This commit is contained in:
Matthew Olsson 2024-02-22 13:56:15 +00:00 • committed by Andreas Kling
parent b258ba2767
commit ae3326a447
7 changed files with 270 additions and 647 deletions
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3
Userland/Libraries/LibWeb/Animations/Animation.cpp
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@ -370,6 +370,9 @@ WebIDL::ExceptionOr<void> Animation::play()
// https://www.w3.org/TR/web-animations-1/#play-an-animation
WebIDL::ExceptionOr<void> Animation::play_an_animation(AutoRewind auto_rewind)
{
if (auto document = document_for_timing())
document->ensure_animation_timer();
// 1. Let aborted pause be a boolean flag that is true if animation has a pending pause task, and false otherwise.
auto aborted_pause = m_pending_pause_task == TaskState::Scheduled;