Make sure value change even happens latest by blur

Author: mstahv

src/main/java/org/vaadin/tinymce/TinyMce.java

@@ -26,6 +26,7 @@
 import com.vaadin.flow.component.dependency.JavaScript;
 import com.vaadin.flow.component.dependency.StyleSheet;
 import com.vaadin.flow.component.html.Div;
+import com.vaadin.flow.dom.DebouncePhase;
 import com.vaadin.flow.dom.DomEventListener;
 import com.vaadin.flow.dom.DomListenerRegistration;
 import com.vaadin.flow.dom.Element;
@@ -87,6 +88,7 @@ public TinyMce(boolean shadowRoot) {
         } else {
             getElement().appendChild(ta);
         }
+
         domListenerRegistration = getElement().addEventListener("tchange",
                 (DomEventListener) event -> {
                     boolean value = event.getEventData()
@@ -135,6 +137,11 @@ protected void onAttach(AttachEvent attachEvent) {
             id = UUID.randomUUID().toString();
             ta.setAttribute("id", id);
         }
+        if(!getEventBus().hasListener(BlurEvent.class)) {
+            // adding fake blur listener so throttled value
+            // change events happen by latest at blur
+            addBlurListener(e -> {});
+        }
         if (!attachEvent.isInitialAttach()) {
             // Value after initial attach should be set via TinyMCE JavaScript
             // API, otherwise value is not updated upon reattach

src/test/java/org/vaadin/tinymce/DemoView.java

@@ -57,18 +57,18 @@ public DemoView() {
             Notification.show("Blur event!");
         });
 
-        Button blur = new Button("blur (NOT SUPPORTED)", e-> {
-            tinyMce.blur();
-        });
-        blur.addClickShortcut(Key.KEY_B, KeyModifier.CONTROL);
-        add(blur);
-
         Button disable = new Button("Disabble", e-> {
             tinyMce.setEnabled(!tinyMce.isEnabled());
             e.getSource().setText(tinyMce.isEnabled() ? "Disable" : "Enable");
         });
         add(disable);
-        
+
+        Button blur = new Button("blur (NOT SUPPORTED really, but of course works from button)", e-> {
+            tinyMce.blur();
+        });
+        blur.addClickShortcut(Key.KEY_B, KeyModifier.CONTROL);
+        add(blur);
+
         tinyMce.addValueChangeListener(e -> {
             Notification.show("ValueChange event!");
             System.out.println(e.getValue());