Merge pull request #224 from jorix/3402-touch_logic_to_superclass

Move some touch logic to the `handler` base class

lib/OpenLayers/Handler/Point.js

@@ -113,12 +113,6 @@ OpenLayers.Handler.Point = OpenLayers.Class(OpenLayers.Handler, {
      */
     pixelTolerance: 5,
 
-    /**
-     * Property: touch
-     * {Boolean} Indcates the support of touch events.
-     */
-    touch: false,
-
     /**
      * Property: lastTouchPx
      * {<OpenLayers.Pixel>} The last pixel used to know the distance between
@@ -216,7 +210,6 @@ OpenLayers.Handler.Point = OpenLayers.Class(OpenLayers.Handler, {
             this.layer.destroy(false);
         }
         this.layer = null;
-        this.touch = false;
         return true;
     },
     
@@ -383,18 +376,7 @@ OpenLayers.Handler.Point = OpenLayers.Class(OpenLayers.Handler, {
      * {Boolean} Allow event propagation
      */
     touchstart: function(evt) {
-        if (!this.touch) {
-            this.touch = true;
-            // unregister mouse listeners
-            this.map.events.un({
-                mousedown: this.mousedown,
-                mouseup: this.mouseup,
-                mousemove: this.mousemove,
-                click: this.click,
-                dblclick: this.dblclick,
-                scope: this
-            });
-        }
+        this.startTouch();
         this.lastTouchPx = evt.xy;
         return this.down(evt);
     },