use parent node if touched on text node for touch events, prevents br…

…eakage

src/touch.js

@@ -1,9 +1,13 @@
 (function($){
   var d = document, touch={}, touchTimeout;
 
+  function parentIfText(node){
+    return 'tagName' in node ? node : node.parentNode;
+  }
+
   d.ontouchstart = function(e) {
     var now = Date.now(), delta = now-(touch.last || now);
-    touch.target = e.touches[0].target;
+    touch.target = parentIfText(e.touches[0].target);
     touchTimeout && clearTimeout(touchTimeout);
     touch.x1 = e.touches[0].pageX;
     if (delta > 0 && delta <= 250) touch.isDoubleTap = true;
@@ -33,4 +37,4 @@
   ['swipe', 'doubleTap', 'tap'].forEach(function(m){
     $.fn[m] = function(callback){ return this.bind(m, callback) }
   });
-})(Zepto);
+})(Zepto);