LibWeb: Add Layout::Node::line_height()

This allows you to call line_height() on any layout node, even if it's a
text node (in which case we'll ask the parent node for its line-height.)

1 files changed, 8 insertions, 0 deletions

diff --git a/Userland/Libraries/LibWeb/Layout/Node.h b/Userland/Libraries/LibWeb/Layout/Node.h
index 95910180e4..0c7bccfbab 100644
--- a/Userland/Libraries/LibWeb/Layout/Node.h
+++ b/Userland/Libraries/LibWeb/Layout/Node.h
@@ -108,6 +108,7 @@ public:
 
     const Gfx::Font& font() const;
     const CSS::ImmutableComputedValues& computed_values() const;
+    float line_height() const;
 
     NodeWithStyle* parent();
     const NodeWithStyle* parent() const;
@@ -227,6 +228,13 @@ inline const CSS::ImmutableComputedValues& Node::computed_values() const
     return parent()->computed_values();
 }
 
+inline float Node::line_height() const
+{
+    if (m_has_style)
+        return static_cast<NodeWithStyle const*>(this)->line_height();
+    return parent()->line_height();
+}
+
 inline const NodeWithStyle* Node::parent() const
 {
     return static_cast<const NodeWithStyle*>(TreeNode<Node>::parent());