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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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11
Userland/Libraries/LibWeb/HTML/Window.cpp
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@ -1085,6 +1085,17 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<CSS::Screen>> Window::screen()
return JS::NonnullGCPtr { *m_screen };
}
WebIDL::ExceptionOr<JS::GCPtr<CSS::VisualViewport>> Window::visual_viewport()
{
// If the associated document is fully active, the visualViewport attribute must return
// the VisualViewport object associated with the Window object’s associated document.
if (associated_document().is_fully_active())
return associated_document().visual_viewport();
// Otherwise, it must return null.
return nullptr;
}
// https://w3c.github.io/csswg-drafts/cssom-view/#dom-window-innerwidth
i32 Window::inner_width() const
{