scrollspy.js in less-rails-bootstrap-2.0.11

- old
+ new

@@ -1,7 +1,7 @@
 /* =============================================================
- * bootstrap-scrollspy.js v2.0.2
+ * bootstrap-scrollspy.js v2.0.3
  * http://twitter.github.com/bootstrap/javascript.html#scrollspy
  * =============================================================
  * Copyright 2012 Twitter, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,14 +15,16 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * ============================================================== */
 
-!function ( $ ) {
 
-  "use strict"
+!function ($) {
 
+  "use strict"; // jshint ;_;
+
+
   /* SCROLLSPY CLASS DEFINITION
    * ========================== */
 
   function ScrollSpy( element, options) {
     var process = $.proxy(this.process, this)
@@ -41,54 +43,78 @@
   ScrollSpy.prototype = {
 
       constructor: ScrollSpy
 
     , refresh: function () {
-        this.targets = this.$body
+        var self = this
+          , $targets
+
+        this.offsets = $([])
+        this.targets = $([])
+
+        $targets = this.$body
           .find(this.selector)
           .map(function () {
-            var href = $(this).attr('href')
-            return /^#\w/.test(href) && $(href).length ? href : null
+            var $el = $(this)
+              , href = $el.data('target') || $el.attr('href')
+              , $href = /^#\w/.test(href) && $(href)
+            return ( $href
+              && href.length
+              && [[ $href.position().top, href ]] ) || null
           })
-
-        this.offsets = $.map(this.targets, function (id) {
-          return $(id).position().top
-        })
+          .sort(function (a, b) { return a[0] - b[0] })
+          .each(function () {
+            self.offsets.push(this[0])
+            self.targets.push(this[1])
+          })
       }
 
     , process: function () {
         var scrollTop = this.$scrollElement.scrollTop() + this.options.offset
+          , scrollHeight = this.$scrollElement[0].scrollHeight || this.$body[0].scrollHeight
+          , maxScroll = scrollHeight - this.$scrollElement.height()
           , offsets = this.offsets
           , targets = this.targets
           , activeTarget = this.activeTarget
           , i
 
+        if (scrollTop >= maxScroll) {
+          return activeTarget != (i = targets.last()[0])
+            && this.activate ( i )
+        }
+
         for (i = offsets.length; i--;) {
           activeTarget != targets[i]
             && scrollTop >= offsets[i]
             && (!offsets[i + 1] || scrollTop <= offsets[i + 1])
             && this.activate( targets[i] )
         }
       }
 
     , activate: function (target) {
         var active
+          , selector
 
         this.activeTarget = target
 
-        this.$body
-          .find(this.selector).parent('.active')
+        $(this.selector)
+          .parent('.active')
           .removeClass('active')
 
-        active = this.$body
-          .find(this.selector + '[href="' + target + '"]')
+        selector = this.selector
+          + '[data-target="' + target + '"],'
+          + this.selector + '[href="' + target + '"]'
+
+        active = $(selector)
           .parent('li')
           .addClass('active')
 
-        if ( active.parent('.dropdown-menu') )  {
-          active.closest('li.dropdown').addClass('active')
+        if (active.parent('.dropdown-menu'))  {
+          active = active.closest('li.dropdown').addClass('active')
         }
+
+        active.trigger('activate')
       }
 
   }
 
 
@@ -120,6 +146,6 @@
       var $spy = $(this)
       $spy.scrollspy($spy.data())
     })
   })
 
-}( window.jQuery );
+}(window.jQuery);
\ No newline at end of file