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LibWeb: Add Document::is_fully_active

This is used in a bunch of places in the HTML spec. The current use
case for this is History.
This commit is contained in:
Luke Wilde 2021-09-11 23:28:41 +01:00 committed by Andreas Kling
parent f5c988b3ce
commit 3eca8cb243
2 changed files with 10 additions and 0 deletions

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@ -970,4 +970,12 @@ String Document::referrer() const
return "";
}
// https://html.spec.whatwg.org/multipage/browsers.html#fully-active
bool Document::is_fully_active() const
{
// A Document d is said to be fully active when d's browsing context is non-null, d's browsing context's active document is d,
// and either d's browsing context is a top-level browsing context, or d's browsing context's container document is fully active.
return browsing_context() && browsing_context()->active_document() == this && (browsing_context()->is_top_level() || browsing_context()->container_document()->is_fully_active());
}
}