JS: Improve selector used in the selectable behavior

public/js/icinga/behavior/selectable.js

@@ -5,6 +5,34 @@
 
     Icinga.Behaviors = Icinga.Behaviors || {};
 
+    /**
+     * Select all contents from the target of the given event
+     *
+     * @param {object} e Event
+     */
+    function onSelect(e) {
+        var b = document.body,
+            r;
+        if (b.createTextRange) {
+            r = b.createTextRange();
+            r.moveToElementText(e.target);
+            r.select();
+        } else if (window.getSelection) {
+            var s = window.getSelection();
+            r = document.createRange();
+            r.selectNodeContents(e.target);
+            s.removeAllRanges();
+            s.addRange(r);
+        }
+    }
+
+    /**
+     * Behavior for text that is selectable via double click
+     *
+     * @param {Icinga} icinga
+     *
+     * @constructor
+     */
     var Selectable = function(icinga) {
         Icinga.EventListener.call(this, icinga);
         this.on('rendered', this.onRendered, this);
@@ -12,25 +40,10 @@
 
     $.extend(Selectable.prototype, new Icinga.EventListener(), {
         onRendered: function(e) {
-            $('.selectable', e.target).on('dblclick', e.data.self.selectText);
+            $(e.target).find('.selectable').on('dblclick', onSelect);
-        },
-
-        selectText: function(e) {
-            var b = document.body,
-                r;
-            if (b.createTextRange) {
-                r = b.createTextRange();
-                r.moveToElementText(e.target);
-                r.select();
-            } else if (window.getSelection) {
-                var s = window.getSelection();
-                r = document.createRange();
-                r.selectNodeContents(e.target);
-                s.removeAllRanges();
-                s.addRange(r);
-            }
         }
     });
 
     Icinga.Behaviors.Selectable = Selectable;
+
 })(Icinga, jQuery);