Add GeoJSON to drag-and-drop example

examples/drag-and-drop.html

@@ -31,11 +31,11 @@
 
         <div class="span4">
           <h4 id="title">Drag-and-Drop example</h4>
-          <p id="shortdesc">Example of using the drag-and-drop interaction. Drag and drop GPX, IGC, or KML files on to the map.</p>
+          <p id="shortdesc">Example of using the drag-and-drop interaction. Drag and drop GPX, GeoJSON, IGC, or KML files on to the map.</p>
           <div id="docs">
             <p>See the <a href="drag-and-drop.js" target="_blank">drag-and-drop.js source</a> to see how this is done.</p>
           </div>
-          <div id="tags">drag-and-drop, gpx, igc, kml</div>
+          <div id="tags">drag-and-drop, gpx, geojson, igc, kml</div>
         </div>
         <div class="span4 offset4">
           <div id="info" class="alert alert-success">

examples/drag-and-drop.js

@@ -2,6 +2,7 @@ goog.require('ol.Map');
 goog.require('ol.RendererHint');
 goog.require('ol.View2D');
 goog.require('ol.format.GPX');
+goog.require('ol.format.GeoJSON');
 goog.require('ol.format.IGC');
 goog.require('ol.format.KML');
 goog.require('ol.interaction');
@@ -85,6 +86,7 @@ var map = new ol.Map({
     new ol.interaction.DragAndDrop({
       formatConstructors: [
         ol.format.GPX,
+        ol.format.GeoJSON,
         ol.format.IGC,
         ol.format.KML
       ],