LibWeb: Ignore svg elements outside of <svg> when building layout tree

An svg layout element without a `SVGSVGElement` ancestor caused a failed assertion before, because the svg context does not exist when `paint()` is called
Author: https://github.com/K-Adam Commit: e8d10fb429 Pull-request: https://github.com/SerenityOS/serenity/pull/9162 Reviewed-by: https://github.com/AtkinsSJ ✅ Reviewed-by: https://github.com/awesomekling
2025-09-19 07:49:05 +00:00 · 2021-08-05 10:26:09 +02:00 · 2021-08-05 10:26:09 +02:00 · e8d10fb429 · 2024-07-18 07:26:43 +09:00
commit e8d10fb429
parent 758d816b23
5 changed files with 28 additions and 5 deletions
--- a/Userland/Libraries/LibWeb/Layout/TreeBuilder.h
+++ b/Userland/Libraries/LibWeb/Layout/TreeBuilder.h
@ -19,7 +19,11 @@ public:
    RefPtr<Layout::Node> build(DOM::Node&);

 private:
-    void create_layout_tree(DOM::Node&);
+    struct Context {
+        bool has_svg_root = false;
+    };
+
+    void create_layout_tree(DOM::Node&, Context&);

    void push_parent(Layout::NodeWithStyle& node) { m_parent_stack.append(&node); }
    void pop_parent() { m_parent_stack.take_last(); }