fix(tooltip): fix positioning inside scrolling element

Closes #533

Author: pkozlowski-opensource

src/position/position.js

@@ -57,8 +57,8 @@ angular.module('ui.bootstrap.position', [])
         var offsetParentEl = parentOffsetEl(element[0]);
         if (offsetParentEl != $document[0]) {
           offsetParentBCR = this.offset(angular.element(offsetParentEl));
-          offsetParentBCR.top += offsetParentEl.clientTop;
-          offsetParentBCR.left += offsetParentEl.clientLeft;
+          offsetParentBCR.top += offsetParentEl.clientTop - offsetParentEl.scrollTop;
+          offsetParentBCR.left += offsetParentEl.clientLeft - offsetParentEl.scrollLeft;
         }
 
         return {

src/position/test/test.html

@@ -71,6 +71,16 @@ <h3>Within absolute-positioned DIV</h3>
     <div class="content" position>Content</div>
 </div>
 
+<h3>Within overflowing absolute-positioned DIV</h3>
+<div class="container" style="height: 50px; overflow: scroll;overflow-x: hidden; position: absolute;">
+    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur non velit nulla. Suspendisse sit amet tempus diam. Sed at ultricies neque. Suspendisse id felis a sem placerat ornare. Donec auctor, purus at molestie tempor, arcu enim molestie lacus, ac imperdiet massa urna eu massa. Praesent velit tellus, scelerisque a fermentum ut, ornare in diam. Phasellus egestas molestie feugiat. Vivamus sit amet viverra metus.
+    <div class="content" position>Content</div>
+</div>
+
+<br>
+<br>
+<br>
+
 <h3>Next to a float element</h3>
 
 <div class="container">