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Code Issues Projects Releases Packages Wiki Activity Actions 9

LibWeb: Move viewport subscriptions from BrowsingContext to Document

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With this change, elements that want to receive viewport rect updates
will need to register on document instead of the browsing context.

This change solves the problem where a browsing context for a document
is guaranteed to exist only while the document is active so browsing
context might not exit by the time DOM node that want to register is
constructed.

This is a part of preparation work before switching to navigables where
this issue becomes more visible.
This commit is contained in:
Aliaksandr Kalenik 2023-08-23 18:58:42 +02:00 • committed by Andreas Kling
parent 48e9097aa4
commit 5ff7448fee
Notes: sideshowbarker 2024-07-17 04:49:48 +09:00
10 changed files with 66 additions and 61 deletions
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14
Userland/Libraries/LibWeb/HTML/HTMLImageElement.cpp
View file

@ -39,8 +39,7 @@ HTMLImageElement::HTMLImageElement(DOM::Document& document, DOM::QualifiedName q
m_animation_timer = Core::Timer::try_create().release_value_but_fixme_should_propagate_errors();
m_animation_timer->on_timeout = [this] { animate(); };
if (auto* browsing_context = document.browsing_context())
browsing_context->register_viewport_client(*this);
document.register_viewport_client(*this);
}
HTMLImageElement::~HTMLImageElement() = default;
@ -48,8 +47,7 @@ HTMLImageElement::~HTMLImageElement() = default;
void HTMLImageElement::finalize()
{
Base::finalize();
if (auto* browsing_context = document().browsing_context())
browsing_context->unregister_viewport_client(*this);
document().unregister_viewport_client(*this);
}
void HTMLImageElement::initialize(JS::Realm& realm)
@ -60,6 +58,12 @@ void HTMLImageElement::initialize(JS::Realm& realm)
m_current_request = ImageRequest::create(realm, *document().page());
}
void HTMLImageElement::adopted_from(DOM::Document& old_document)
{
old_document.unregister_viewport_client(*this);
document().register_viewport_client(*this);
}
void HTMLImageElement::visit_edges(Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
@ -630,7 +634,7 @@ void HTMLImageElement::add_callbacks_to_image_request(JS::NonnullGCPtr<ImageRequ
});
}
void HTMLImageElement::browsing_context_did_set_viewport_rect(CSSPixelRect const& viewport_rect)
void HTMLImageElement::did_set_viewport_rect(CSSPixelRect const& viewport_rect)
{
if (viewport_rect.size() == m_last_seen_viewport_size)
return;