added xpath calculation

1 files changed, 74 insertions, 1 deletions

diff --git a/contexts/data/fiveui/injected/fiveui-injected-compute.js b/contexts/data/fiveui/injected/fiveui-injected-compute.js
index b6a814f..2d35312 100644
--- a/contexts/data/fiveui/injected/fiveui-injected-compute.js
+++ b/contexts/data/fiveui/injected/fiveui-injected-compute.js
@@ -93,7 +93,8 @@
        name: name,
        descr: rule.description,
        url: window.location.href,
-       severity: 1
+       severity: 1,
+       xpath: core.getElementXPath(node)
      };
 
      var nodeParents = function(node) {
@@ -122,6 +123,78 @@
      return prob;
    };
 
+   /* The next two methods are provided under the following license: */
+   /* Software License Agreement (BSD License)
+
+      Copyright (c) 2007, Parakey Inc.
+      All rights reserved.
+
+      Redistribution and use of this software in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above
+        copyright notice, this list of conditions and the
+        following disclaimer.
+
+      * Redistributions in binary form must reproduce the above
+        copyright notice, this list of conditions and the
+        following disclaimer in the documentation and/or other
+        materials provided with the distribution.
+
+      * Neither the name of Parakey Inc. nor the names of its
+        contributors may be used to endorse or promote products
+        derived from this software without specific prior
+        written permission of Parakey Inc.
+
+      THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+      IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+      FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+      CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+      DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+      DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+      IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+      OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+    */
+
+   /**
+    * Gets an XPath for an element which describes its hierarchical location.
+    */
+   core.getElementXPath = function(element)
+   {
+       if (element && element.id)
+           return '//*[@id="' + element.id + '"]';
+       else
+           return core.getElementTreeXPath(element);
+   };
+
+   core.getElementTreeXPath = function(element)
+   {
+       var paths = [];
+
+       // Use nodeName (instead of localName) so namespace prefix is included (if any).
+       for (; element && element.nodeType == 1; element = element.parentNode)
+       {
+           var index = 0;
+           for (var sibling = element.previousSibling; sibling; sibling = sibling.previousSibling)
+           {
+               // Ignore document type declaration.
+               if (sibling.nodeType == Node.DOCUMENT_TYPE_NODE)
+                   continue;
+
+               if (sibling.nodeName == element.nodeName)
+                   ++index;
+           }
+
+           var tagName = element.nodeName.toLowerCase();
+           var pathIndex = (index ? "[" + (index+1) + "]" : "");
+           paths.splice(0, 0, tagName + pathIndex);
+       }
+
+       return paths.length ? "/" + paths.join("/") : null;
+   };
+
+   /* END of BSD licensed code */
+
    core.evaluate = function(rs) {
      var i;
      var theRule = null;