Update plugin.js, add info about zoom

src/js/plugin.js

@@ -3,6 +3,7 @@ minervaDefine(function () {
     register: function (minervaObject) {
       minervaObject.element.innerHTML = "<div>" +
         "<label>Map: </label><input id='model-id'/><br/>" +
+        "<label>Zoom: </label><input id='zoom'/></br>" +
         "<label>P1: </label><input id='left-top-corner'/><br/>" +
         "<label>P2: </label2><input id='right-bottom-corner'/><br/>" +
         "<label>Dialog content pos: </label><input id='dialog-left-top-corner'/><br/>" +
@@ -14,9 +15,13 @@ minervaDefine(function () {
       //listeners for bounds change
       var persistBoundsData = function (modelId) {
         var bounds = minervaObject.project.map.getBounds({modelId: modelId});
+        var zoom = minervaObject.project.map.getZoom({modelId: modelId});
         $("#left-top-corner", minervaObject.element).val(Math.round(bounds.getTopLeft().x) + ";" + Math.round(bounds.getTopLeft().y));
         $("#right-bottom-corner", minervaObject.element).val(Math.round(bounds.getRightBottom().x) + ";" + Math.round(bounds.getRightBottom().y));
-        return minervaObject.pluginData.setUserParam("bounds-" + modelId, Math.round(bounds.getTopLeft().x) + ";" + Math.round(bounds.getTopLeft().y) + " " + Math.round(bounds.getRightBottom().x) + ";" + Math.round(bounds.getRightBottom().y))
+        $("#zoom", minervaObject.element).val(Math.round(zoom));
+        return minervaObject.pluginData.setUserParam("bounds-" + modelId, Math.round(bounds.getTopLeft().x) + ";" + Math.round(bounds.getTopLeft().y) + " " + Math.round(bounds.getRightBottom().x) + ";" + Math.round(bounds.getRightBottom().y)).then(function () {
+          return minervaObject.pluginData.setUserParam("zoom-" + modelId, Math.round(zoom));
+        });
       };
 
       //listener for dialog position/size change