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LibWeb: Implement basic version of CSSOM View's VisualViewport

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We got some errors while loading https://twinings.co.uk/ about this
interface missing, and it looked fairly simple so I sketched it out.
Note that I did leave some FIXMEs where it's not clear exactly which
metrics we should be returning.
This commit is contained in:
Andreas Kling 2023-06-17 16:40:35 +02:00
parent 2a914a7a59
commit 9f6ceff7cf
13 changed files with 257 additions and 2 deletions
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4
Userland/Libraries/LibWeb/DOM/Document.h
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@ -380,6 +380,8 @@ public:
void evaluate_media_queries_and_report_changes();
void add_media_query_list(JS::NonnullGCPtr<CSS::MediaQueryList>);
JS::NonnullGCPtr<CSS::VisualViewport> visual_viewport();
bool has_focus() const;
void set_parser(Badge<HTML::HTMLParser>, HTML::HTMLParser&);
@ -668,6 +670,8 @@ private:
// https://html.spec.whatwg.org/multipage/images.html#list-of-available-images
OwnPtr<HTML::ListOfAvailableImages> m_list_of_available_images;
JS::GCPtr<CSS::VisualViewport> m_visual_viewport;
// NOTE: Not in the spec per say, but Document must be able to access all IntersectionObservers whose root is in the document.
OrderedHashTable<JS::NonnullGCPtr<IntersectionObserver::IntersectionObserver>> m_intersection_observers;