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LibWeb: Tear down old layout tree when new document becomes active

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When a new document becomes the active document of a browsing context,
we now notify the old document, allowing it to tear down its layout
tree. In the future, there might be more cleanups we'd like to do here.
This commit is contained in:
Andreas Kling 2022-10-16 15:53:15 +02:00
commit dbee75af19
Notes: sideshowbarker 2024-07-17 22:55:25 +09:00
3 changed files with 12 additions and 0 deletions
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5
Userland/Libraries/LibWeb/HTML/BrowsingContext.cpp
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@ -295,6 +295,8 @@ bool BrowsingContext::is_focused_context() const
// https://html.spec.whatwg.org/multipage/browsers.html#set-the-active-document
void BrowsingContext::set_active_document(JS::NonnullGCPtr<DOM::Document> document)
{
auto previously_active_document = active_document();
// 1. Let window be document's relevant global object.
auto& window = verify_cast<HTML::Window>(relevant_global_object(document));
@ -315,6 +317,9 @@ void BrowsingContext::set_active_document(JS::NonnullGCPtr<DOM::Document> docume
if (m_page && is_top_level())
m_page->client().page_did_change_title(document->title());
if (previously_active_document && previously_active_document != document.ptr())
previously_active_document->did_stop_being_active_document_in_browsing_context({});
}
void BrowsingContext::set_viewport_rect(Gfx::IntRect const& rect)