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LibWeb: Make sure that root of style updates is marked clean

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The recursive style update function was written a bit strangely and
would only mark descendants of the style update root as not needing a
style update.

With this patch, all nodes in the subtree now have clean style after a
style update finishes.
This commit is contained in:
Andreas Kling 2021-10-08 01:29:18 +02:00
parent 13361bc47d
commit 5a929f12bc
1 changed files with 13 additions and 12 deletions
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25
Userland/Libraries/LibWeb/DOM/Document.cpp
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@ -452,18 +452,19 @@ void Document::update_layout()
static void update_style_recursively(DOM::Node& node) static void update_style_recursively(DOM::Node& node)
{ {
node.for_each_child([&](auto& child) { if (is<Element>(node))
if (child.needs_style_update()) { static_cast<Element&>(node).recompute_style();
if (is<Element>(child)) node.set_needs_style_update(false);
verify_cast<Element>(child).recompute_style();
child.set_needs_style_update(false); if (node.child_needs_style_update()) {
} node.for_each_child([&](auto& child) {
if (child.child_needs_style_update()) { if (child.needs_style_update())
update_style_recursively(child); update_style_recursively(child);
child.set_child_needs_style_update(false); return IterationDecision::Continue;
} });
return IterationDecision::Continue; }
});
node.set_child_needs_style_update(false);
} }
void Document::update_style() void Document::update_style()