add changeAnnotation listener

src/ui-ace.js

@@ -161,6 +161,13 @@ angular.module('ui.ace', [])
  */
  var onChangeListener;
 
+ /**
+ * Reference to a change annotation listener created by the listener factory.
+ * @function
+ * @see listenerFactory.onChangeAnnotation
+ */
+ var onChangeAnnotationListener;
+
  /**
  * Reference to a blur listener created by the listener factory.
  * @function
@@ -237,6 +244,22 @@ angular.module('ui.ace', [])
  executeUserCallback(callback, e, acee);
  };
  },
+ /**
+ * Creates an annotation listener which propagates the editor session
+ * to the callback from the user option onChangeAnnotation. It might be
+ * exchanged during runtime, if this happens the old listener
+ * will be unbound.
+ *
+ * @param callback callback function defined in the user options
+ * @see onChangeAnnotation
+ */
+ onChangeAnnotation: function (callback) {
+ return function () {
+ if (angular.isFunction(callback)) {
+ callback(session.getAnnotations());
+ }
+ };
+ },
  /**
  * Creates a blur listener which propagates the editor session
  * to the callback from the user option onBlur. It might be
@@ -294,6 +317,15 @@ angular.module('ui.ace', [])
  onChangeListener = listenerFactory.onChange(opts.onChange);
  session.on('change', onChangeListener);
 
+ // unbind old annotation listener
+ //session.removeListener('blur', onChangeAnnotationListener);
+ session.removeListener('changeAnnotation', onChangeAnnotationListener);
+
+ // bind new blur listener
+ onChangeAnnotationListener = listenerFactory.onChangeAnnotation(opts.onChangeAnnotation);
+ session.on('changeAnnotation', onChangeAnnotationListener);
+
+
  // unbind old blur listener
  //session.removeListener('blur', onBlurListener);
  acee.removeListener('blur', onBlurListener);