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LibWeb: Flush pending layouts when accessing element resolved style

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We were handing out stale values from window.getComputedStyle() objects
after the first layout.

Fix this by always updating layout on property access. This is not
necessary for all properties, but for now let's go with the simplest
approach to make it work correctly.
This commit is contained in:
Andreas Kling
2022-03-09 17:51:02 +01:00
parent 3259b17a6a
commit 04311ca7f1
Notes: sideshowbarker 2024-07-17 17:39:28 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/04311ca7f1
1 changed files with 2 additions and 1 deletions
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3
Userland/Libraries/LibWeb/CSS/ResolvedCSSStyleDeclaration.cpp
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@@ -772,7 +772,8 @@ RefPtr<StyleValue> ResolvedCSSStyleDeclaration::style_value_for_property(Layout:
Optional<StyleProperty> ResolvedCSSStyleDeclaration::property(PropertyID property_id) const
{
const_cast<DOM::Document&>(m_element->document()).ensure_layout();
// FIXME: Only update layout if required to resolve the property we're accessing.
const_cast<DOM::Document&>(m_element->document()).update_layout();
if (!m_element->layout_node()) {
auto style = m_element->document().style_computer().compute_style(const_cast<DOM::Element&>(*m_element));