Feature: Tooltip title option can be set to other attribute names

Created by: maraujop

we can do title: whatever. If whatever is an attribute of the element, we use its html content. If whatever is not an attribute, then it is used as a fallback string, as it is specified now in the docs.

This way we can select another attribute to read, different to title, without having to write a function. I believe this is something interesting to have and is what people are used to have around.

Cheers, Miguel

js/bootstrap-tooltip.js

@@ -199,16 +199,23 @@
     }
 
   , getTitle: function () {
-      var title
-        , $e = this.$element
-        , o = this.options
-
-      title = $e.attr('data-original-title')
-        || (typeof o.title == 'function' ? o.title.call($e[0]) :  o.title)
-
-      title = title.toString().replace(/(^\s*|\s*$)/, "")
+      var title, $e = this.$element, o = this.options;
+      this.fixTitle();
+
+      if (typeof o.title == 'string') {
+          var title_name = o.title == 'title' ? 'original-title' : o.title;
+          if ($e.children(title_name).length){
+              title = $e.children(title_name).html();
+          } else{
+              title = $e.attr(title_name);
+              if (typeof title == 'undefined') title = title_name
+          }
 
-      return title
+      } else if (typeof o.title == 'function') {
+          title = o.title.call($e[0]);
+      }
+      title = ('' + title).replace(/(^\s*|\s*$)/, "");
+      return title || o.fallback;
     }
 
   , tip: function () {
@@ -267,4 +274,4 @@
   , template: '<div class="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>'
   }
 
-}( window.jQuery );
\ No newline at end of file
+}( window.jQuery );