OSSForks/ladybird
1
0
Fork 0
mirror of https://github.com/zebrajr/ladybird.git synced 2025-12-06 00:19:53 +01:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

LibWeb: Iterate safely in update_animations_and_send_events()

Browse Source 
Make copies of the animation timeline list and animations to dispatch
events at before iterating over them. This ensures that they can't be
modified during iteration.
This commit is contained in:
Andreas Kling 2025-05-28 11:20:05 +02:00 committed by Alexander Kalenik
parent 32769393a8
commit 59d46af946
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Libraries/LibWeb/DOM/Document.cpp
View File

@ -5240,7 +5240,9 @@ void Document::update_animations_and_send_events(Optional<double> const& timesta
// updated.
// - Queueing animation events for any such animations.
m_last_animation_frame_timestamp = timestamp;
for (auto const& timeline : m_associated_animation_timelines)
auto timelines_to_update = GC::RootVector { heap(), m_associated_animation_timelines.values() };
for (auto const& timeline : timelines_to_update)
timeline->set_current_time(timestamp);
// 2. Remove replaced animations for doc.
@ -5296,8 +5298,9 @@ void Document::update_animations_and_send_events(Optional<double> const& timesta
for (auto const& event : events_to_dispatch)
event.target->dispatch_event(event.event);
for (auto& timeline : m_associated_animation_timelines) {
for (auto& animation : timeline->associated_animations())
for (auto& timeline : timelines_to_update) {
auto animations_to_dispatch = GC::RootVector { heap(), timeline->associated_animations().values() };
for (auto& animation : animations_to_dispatch)
dispatch_events_for_animation_if_necessary(animation);
}
}