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LibWeb: Fix two problems where media queries didn't invalidate properly

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There were two things going wrong here:

- Transformed text (via CSS text-transform) was not invalidated after a
  `@media` rule changed state.

- Removing the `style` attribute from an element didn't trigger a style
  update.

This fixes the regression in subtest 46 of Acid3.

Fixes #21777
This commit is contained in:
Andreas Kling 2024-04-17 11:33:41 +02:00
commit 41667f969d
Notes: sideshowbarker 2024-07-17 07:06:47 +09:00
4 changed files with 29 additions and 1 deletions
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2
Tests/LibWeb/Text/expected/css/text-transform-invalidation-on-media-query-change.txt Normal file
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@ -0,0 +1,2 @@
TRANSFORMED TEXT
transformed text

25
Tests/LibWeb/Text/input/css/text-transform-invalidation-on-media-query-change.html Normal file
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@ -0,0 +1,25 @@
<!doctype html>
<style>
iframe {
width: 0;
height: 0;
border: 1px solid black;
}
</style>
<script src="../include.js"></script>
<body><iframe id="i1"></iframe>
<script>
asyncTest((done) => {
i1.srcdoc = `
<style>
@media all and (min-height: 1px) { #y1 { text-transform: uppercase; } }
</style><div id=y1>transformed text</div><script>document.body.offsetWidth</` + `script>`;
i1.onload = function() {
i1.setAttribute("style", "height: 100px; width: 100px");
println(i1.contentDocument.body.innerText);
i1.removeAttribute("style");
println(i1.contentDocument.body.innerText);
done();
};
});
</script>

1
Userland/Libraries/LibWeb/DOM/Document.cpp
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@ -2503,6 +2503,7 @@ void Document::evaluate_media_rules()
if (any_media_queries_changed_match_state) { if (any_media_queries_changed_match_state) {
style_computer().invalidate_rule_cache(); style_computer().invalidate_rule_cache();
invalidate_style(); invalidate_style();
invalidate_layout();
} }
} }

2
Userland/Libraries/LibWeb/DOM/Element.cpp
View file

@ -475,7 +475,7 @@ void Element::attribute_changed(FlyString const& name, Optional<String> const& v
m_class_list->associated_attribute_changed(value_or_empty); m_class_list->associated_attribute_changed(value_or_empty);
} else if (name == HTML::AttributeNames::style) { } else if (name == HTML::AttributeNames::style) {
if (!value.has_value()) { if (!value.has_value()) {
if (!m_inline_style) { if (m_inline_style) {
m_inline_style = nullptr; m_inline_style = nullptr;
set_needs_style_update(true); set_needs_style_update(true);
} }