[view][s]: create a CKAN.View.flash method for doing message flashing…

… and convert from existing trigger method to this.

lib/view.js

@@ -4,6 +4,17 @@ CKAN.View = function($) {
   var my = {};
   var showdown = new Showdown.converter();
 
+  // Flash a notification message
+  // 
+  // Parameters: msg, type. type is set as class on notification and should be one of success, error.
+  // If type not defined defaults to success
+  my.flash = function(msg, type) {
+    if (type === undefined) {
+      var type = 'success'
+    }
+    $.event.trigger('notification', [msg, type]);
+  };
+
   my.NotificationView = Backbone.View.extend({
     initialize: function() {
       $.template('notificationTemplate',
@@ -48,7 +59,7 @@ CKAN.View = function($) {
     updateConfig: function(e) {
       e.preventDefault();
       this.saveConfig();
-      $.event.trigger('notification', ['Saved configuration', 'success']);
+      CKAN.View.flash('Saved configuration');
     },
 
     saveConfig: function() {
@@ -96,7 +107,7 @@ CKAN.View = function($) {
       this.model.set(this.getData());
       this.model.save({}, {
         success: function(model) {
-          $.event.trigger('notification', ['Saved dataset', 'success']);
+          CKAN.View.flash('Saved dataset');
           window.location.hash = '#dataset/' + model.id + '/view';
         }
       });