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LibWeb: Re-evaluate media queries only when things they depend on change

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Before this change we were re-evaluating media queries on every frame
which adds up in 1-4% in profiles on Discord.
This commit is contained in:
Aliaksandr Kalenik 2025-08-05 16:56:05 +02:00 • committed by Jelle Raaijmakers
parent 3920194bca
commit 7a34bc2700
Notes: github-actions[bot] 2025-08-05 15:26:02 +00:00
4 changed files with 17 additions and 3 deletions
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12
Services/WebContent/PageClient.cpp
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@ -145,22 +145,28 @@ void PageClient::set_palette_impl(Gfx::PaletteImpl& impl)
void PageClient::set_preferred_color_scheme(Web::CSS::PreferredColorScheme color_scheme)
{
m_preferred_color_scheme = color_scheme;
if (auto* document = page().top_level_browsing_context().active_document())
if (auto* document = page().top_level_browsing_context().active_document()) {
document->invalidate_style(Web::DOM::StyleInvalidationReason::SettingsChange);
document->set_needs_media_query_evaluation();
}
}
void PageClient::set_preferred_contrast(Web::CSS::PreferredContrast contrast)
{
m_preferred_contrast = contrast;
if (auto* document = page().top_level_browsing_context().active_document())
if (auto* document = page().top_level_browsing_context().active_document()) {
document->invalidate_style(Web::DOM::StyleInvalidationReason::SettingsChange);
document->set_needs_media_query_evaluation();
}
}
void PageClient::set_preferred_motion(Web::CSS::PreferredMotion motion)
{
m_preferred_motion = motion;
if (auto* document = page().top_level_browsing_context().active_document())
if (auto* document = page().top_level_browsing_context().active_document()) {
document->invalidate_style(Web::DOM::StyleInvalidationReason::SettingsChange);
document->set_needs_media_query_evaluation();
}
}
void PageClient::set_is_scripting_enabled(bool is_scripting_enabled)