From d0e795705b4148903afbb59ea17481c1c0123fdd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Wang?= <fred.wang@free.fr>
Date: Thu, 30 May 2013 11:26:50 +0200
Subject: [PATCH] WebKit NativeMML: only apply lspace/rspace in non-embellised
 mrow and set them to 0 otherwise.

---
 unpacked/jax/output/NativeMML/jax.js | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/unpacked/jax/output/NativeMML/jax.js b/unpacked/jax/output/NativeMML/jax.js
index 5935e5020..f6fa1e5cb 100644
--- a/unpacked/jax/output/NativeMML/jax.js
+++ b/unpacked/jax/output/NativeMML/jax.js
@@ -1127,14 +1127,17 @@
           // constant values instead. So let's modify the CSS properties here.
           //
 
-          //
-          // Retrieve the values of lspace/rspace and convert named spaces.
-          // Other values (except unitless) will be parsed by the CSS engine.
-          //
-          var values = this.getValues("lspace", "rspace");
-          var lspace = values.lspace, rspace = values.rspace;
-          if (nMML.NAMEDSPACE[lspace]) {lspace = nMML.NAMEDSPACE[lspace]}
-          if (nMML.NAMEDSPACE[rspace]) {rspace = nMML.NAMEDSPACE[rspace]}
+          var lspace = 0, rspace = 0, p = this.parent;
+          if (p && p.type === "mrow" && (p.inferred || !p.isEmbellished())) {
+            //
+            // Retrieve the values of lspace/rspace and convert named spaces.
+            // Other values (except unitless) will be parsed by the CSS engine.
+            //
+            var values = this.getValues("lspace", "rspace");
+            lspace = values.lspace, rspace = values.rspace;
+            if (nMML.NAMEDSPACE[lspace]) {lspace = nMML.NAMEDSPACE[lspace]}
+            if (nMML.NAMEDSPACE[rspace]) {rspace = nMML.NAMEDSPACE[rspace]}
+          }
 
           //
           // Now update -webkit-margin-start and -webkit-margin-end.