Dropdown: Fixes #498, dropdown item links not clickable from touch events. Fixes issue with touchmove event not being cremoved after menu hide

src/modules/dropdown.js

@@ -67,7 +67,6 @@ $.fn.dropdown = function(parameters) {
           if(hasTouch) {
             module.bind.touchEvents();
           }
-          // no use detecting mouse events because touch devices emulate them
           module.bind.mouseEvents();
           module.instantiate();
         },
@@ -146,6 +145,7 @@ $.fn.dropdown = function(parameters) {
             if(hasTouch) {
               $document
                 .off('touchstart' + eventNamespace)
+                .off('touchmove' + eventNamespace)
               ;
             }
             $document
@@ -216,11 +216,19 @@ $.fn.dropdown = function(parameters) {
                   : $choice.text(),
                 value   = ( $choice.data(metadata.value) !== undefined)
                   ? $choice.data(metadata.value)
-                  : text.toLowerCase()
+                  : text.toLowerCase(),
+                callback = function() {
+                  module.determine.selectAction(text, value);
+                  $.proxy(settings.onChange, element)(value, text);
+                }
               ;
               if( $choice.find(selector.menu).size() === 0 ) {
-                module.determine.selectAction(text, value);
-                $.proxy(settings.onChange, element)(value, text);
+                if(event.type == 'touchstart') {
+                  $choice.one('click', callback);
+                }
+                else {
+                  callback();
+                }
               }
             }
 
@@ -546,12 +554,14 @@ $.fn.dropdown = function(parameters) {
             if(module.is.visible($currentMenu) ) {
               module.verbose('Doing menu hide animation', $currentMenu);
               if($.fn.transition !== undefined && $module.transition('is supported')) {
-                $currentMenu.transition({
-                  animation : settings.transition + ' out',
-                  duration  : settings.duration,
-                  complete  : callback,
-                  queue     : false
-                });
+                $currentMenu
+                  .transition({
+                    animation : settings.transition + ' out',
+                    duration  : settings.duration,
+                    complete  : callback,
+                    queue     : false
+                  })
+                ;
               }
               else if(settings.transition == 'none') {
                 callback();