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LibWeb: Use document's viewport when resolving lengths in media queries

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Previously we would always use the window's viewport which was incorrect
if we were within an iframe.

This is likely applicable to all uses of
`Length::ResolutionContext::for_window`.
This commit is contained in:
Callum Law 2025-10-07 00:54:19 +13:00 • committed by Sam Atkins
commit 05c336ea4e
Notes: github-actions[bot] 2025-10-07 09:34:36 +00:00
23 changed files with 198 additions and 83 deletions
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6
Libraries/LibWeb/CSS/MediaQueryList.cpp
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@ -85,16 +85,12 @@ bool MediaQueryList::matches() const
bool MediaQueryList::evaluate()
{
auto window = m_document->window();
if (!window)
return false;
if (m_media.is_empty())
return true;
bool now_matches = false;
for (auto& media : m_media) {
now_matches = now_matches || media->evaluate(*window);
now_matches = now_matches || media->evaluate(m_document);
}
return now_matches;