Taking XML namespaces into account when searching by XPath. Checked to work in Firefox. Chrome supports namespaces out of the box. Need to update IE and Safari drivers to use the updated atom and test them carefully.

Author: barancev

java/client/test/org/openqa/selenium/ElementFindingTest.java

@@ -32,12 +32,14 @@
 import static org.junit.Assume.assumeFalse;
 import static org.openqa.selenium.testing.Ignore.Driver.ANDROID;
 import static org.openqa.selenium.testing.Ignore.Driver.CHROME;
+import static org.openqa.selenium.testing.Ignore.Driver.HTMLUNIT;
 import static org.openqa.selenium.testing.Ignore.Driver.IE;
 import static org.openqa.selenium.testing.Ignore.Driver.IPHONE;
 import static org.openqa.selenium.testing.Ignore.Driver.MARIONETTE;
 import static org.openqa.selenium.testing.Ignore.Driver.OPERA;
 import static org.openqa.selenium.testing.Ignore.Driver.OPERA_MOBILE;
 import static org.openqa.selenium.testing.Ignore.Driver.REMOTE;
+import static org.openqa.selenium.testing.Ignore.Driver.SAFARI;
 import static org.openqa.selenium.testing.TestUtilities.isOldIe;
 
 import static org.hamcrest.Matchers.is;
@@ -399,6 +401,14 @@ public void testFindingALinkByXpathUsingContainsKeywordShouldWork() {
     assertThat(element.getText(), containsString("hello world"));
   }
 
+  @Ignore({ANDROID, HTMLUNIT, IE, IPHONE, OPERA, OPERA_MOBILE, MARIONETTE, SAFARI})
+  @Test
+  public void testShouldBeAbleToFindElementByXPathWithNamespace() {
+    driver.get(pages.svgPage);
+    WebElement element = driver.findElement(By.xpath("//svg:svg//svg:text"));
+    assertThat(element.getText(), is("Test Chart"));
+  }
+
   // By.xpath negative
 
   @Test(expected = NoSuchElementException.class)

javascript/atoms/locators/xpath.js

@@ -96,9 +96,31 @@ bot.locators.xpath.evaluate_ = function(node, path, resultType) {
   }
 
   try {
-    var resolver = doc.createNSResolver ?
-        doc.createNSResolver(doc.documentElement) :
-        bot.locators.xpath.DEFAULT_RESOLVER_;
+    var reversedNamespaces = {};
+    var allNodes = doc.getElementsByTagName("*");
+    for (var i = 0; i < allNodes.length; ++i) {
+      var node = allNodes[i];
+      var ns = node.namespaceURI;
+      if (!reversedNamespaces[ns]) {
+        var prefix = node.lookupPrefix(ns);
+        if (!prefix) {
+          var m = ns.match('.*/(\\w+)/?$');
+          if (m) {
+            prefix = m[1];
+          } else {
+            prefix = 'xhtml';
+          }
+        }
+        reversedNamespaces[ns] = prefix;
+      }
+    }
+    var namespaces = {};
+    for (var key in reversedNamespaces) {
+      namespaces[reversedNamespaces[key]] = key;
+    }
+    var resolver = function(prefix) {
+      return namespaces[prefix] || null;
+    }
     if (goog.userAgent.IE && !goog.userAgent.isVersionOrHigher(7)) {
       // IE6, and only IE6, has an issue where calling a custom function
       // directly attached to the document object does not correctly propagate