Make HTML tooltips have the directionality of their parent element. Bug 91312, patch mostly by Ilya Konstantinov <mozilla-bugzilla@future.shiny.co.il>, r=Mano, sr=Neil

suite/browser/browser.js

@@ -251,17 +251,26 @@ function FillInHTMLTooltip(tipElement)
 
   var titleText = null;
   var XLinkTitleText = null;
+  var direction = tipElement.ownerDocument.dir;
   
   while (!titleText && !XLinkTitleText && tipElement) {
     if (tipElement.nodeType == Node.ELEMENT_NODE) {
       titleText = tipElement.getAttribute("title");
       XLinkTitleText = tipElement.getAttributeNS(XLinkNS, "title");
+      var defView = tipElement.ownerDocument.defaultView;
+      // XXX Work around bug 350679:
+      // "Tooltips can be fired in documents with no view".
+      if (!defView)
+        return retVal;
+      direction = defView.getComputedStyle(tipElement, "")
+        .getPropertyValue("direction");
     }
     tipElement = tipElement.parentNode;
   }
 
   var texts = [titleText, XLinkTitleText];
   var tipNode = document.getElementById("aHTMLTooltip");
+  tipNode.style.direction = direction;
 
   for (var i = 0; i < texts.length; ++i) {
     var t = texts[i];