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LibWeb: Add a document observer for visibility state changes

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Timothy Flynn 2024-10-28 13:56:49 -04:00 • committed by Tim Ledbetter
commit 9e10010c54
Notes: github-actions[bot] 2024-10-29 11:04:33 +00:00
4 changed files with 20 additions and 1 deletions
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9
Userland/Libraries/LibWeb/DOM/DocumentObserver.cpp
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@ -26,6 +26,7 @@ void DocumentObserver::visit_edges(Cell::Visitor& visitor)
visitor.visit(m_document_became_inactive);
visitor.visit(m_document_completely_loaded);
visitor.visit(m_document_readiness_observer);
visitor.visit(m_document_visibility_state_observer);
}
void DocumentObserver::finalize()
@ -58,4 +59,12 @@ void DocumentObserver::set_document_readiness_observer(Function<void(HTML::Docum
m_document_readiness_observer = nullptr;
}
void DocumentObserver::set_document_visibility_state_observer(Function<void(HTML::VisibilityState)> callback)
{
if (callback)
m_document_visibility_state_observer = JS::create_heap_function(vm().heap(), move(callback));
else
m_document_visibility_state_observer = nullptr;
}
}