From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 layout/reftests/css-ruby/dynamic-insertion.js | 42 +++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 layout/reftests/css-ruby/dynamic-insertion.js

(limited to 'layout/reftests/css-ruby/dynamic-insertion.js')

diff --git a/layout/reftests/css-ruby/dynamic-insertion.js b/layout/reftests/css-ruby/dynamic-insertion.js
new file mode 100644
index 000000000..0bf6cd969
--- /dev/null
+++ b/layout/reftests/css-ruby/dynamic-insertion.js
@@ -0,0 +1,42 @@
+window.onload = function() {
+  // Force a reflow before any changes.
+  document.body.clientWidth;
+
+  var elems = document.querySelectorAll('[data-insert]');
+  Array.from(elems).forEach(function(e) {
+    var parent, ref;
+    switch (e.dataset.insert) {
+      case 'start':
+        parent = e;
+        ref = e.firstChild;
+        break;
+
+      case 'end':
+        parent = e;
+        ref = null;
+        break;
+
+      case 'before':
+        parent = e.parentNode;
+        ref = e;
+        break;
+
+      case 'after':
+        parent = e.parentNode;
+        ref = e.nextSibling;
+        break;
+    }
+
+    var elem, textnode;
+    if ('text' in e.dataset) {
+      textnode = document.createTextNode(e.dataset.text);
+    }
+    if ('tag' in e.dataset) {
+      elem = document.createElement(e.dataset.tag);
+      if (textnode) {
+        elem.appendChild(textnode);
+      }
+    }
+    parent.insertBefore(elem ? elem : textnode, ref);
+  });
+};
-- 
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