Remember currently showed settings model ID

[MAILPOET-1974]

assets/js/src/newsletter_editor/App.js

@@ -21,6 +21,7 @@ var EditorApplication = Marionette.Application.extend({
   onStart: function onStart() {
     this._appView = new AppView();
     this.showView(this._appView);
+    this.listenTo(this.getChannel(), 'settingsShowed', this.setShowedSettingsId);
   },
 
   getChannel: function getChannel(channel) {
@@ -29,6 +30,10 @@ var EditorApplication = Marionette.Application.extend({
     }
     return Radio.channel(channel);
   },
+
+  setShowedSettingsId: function setShowedSettingsId(id) {
+    this.showedSettingsId = id;
+  },
 });
 
 var app = new EditorApplication();

assets/js/src/newsletter_editor/blocks/base.js

@@ -225,6 +225,7 @@ Module.BlockToolsView = AugmentedView.extend({
   },
   changeSettings: function changeSettings(options) {
     var ViewType = this.getSettingsView();
+    App.getChannel().trigger('settingsShowed', this.model.cid);
     (new ViewType(_.extend({ model: this.model }, options || {}))).render();
   },
   showDeletionConfirmation: function showDeletionConfirmation() {
@@ -313,6 +314,7 @@ Module.BlockSettingsView = Marionette.View.extend({
   onBeforeDestroy: function onBeforeDestroy() {
     MailPoet.Modal.close();
     this.model.trigger('stopEditing');
+    App.getChannel().trigger('settingsShowed', null);
   },
 });