refactor: use lombok extension mechanism

Author: javier-godoy

src/main/java/com/flowingcode/vaadin/addons/gridhelpers/EnhancedSelectionGridHelper.java

@@ -26,12 +26,12 @@
 import com.vaadin.flow.component.grid.Grid;
 import com.vaadin.flow.component.grid.dataview.GridListDataView;
 import com.vaadin.flow.shared.Registration;
-import elemental.json.JsonObject;
 import java.io.Serializable;
 import java.util.Optional;
 import java.util.stream.Collectors;
 import java.util.stream.IntStream;
 import lombok.RequiredArgsConstructor;
+import lombok.experimental.ExtensionMethod;
 
 /**
  * Add support for multiple items selection using click, arrow up/down, shift+click, shift+arrow
@@ -40,6 +40,7 @@
  */
 @SuppressWarnings("serial")
 @RequiredArgsConstructor
+@ExtensionMethod(value = JsonMigration.class, suppressBaseMethods = true)
 class EnhancedSelectionGridHelper<T> implements Serializable {
 
   private static final String KEY_UP_EVENT_SHIFT_KEY = "event.shiftKey";
@@ -103,27 +104,26 @@ void enableEnhancedSelection() {
     });
 
     keyUpRegistration = grid.getElement().addEventListener("keyup", ev -> {
-      JsonObject eventData = JsonMigration.getEventData(ev);
-
-      String keyUp = eventData.getString(KEY_UP_EVENT_KEY);
+      String keyUp = ev.getEventData().getString(KEY_UP_EVENT_KEY);
       boolean arrowsKey = "ArrowDown".equals(keyUp) || "ArrowUp".equals(keyUp);
 
       GridListDataView<T> dataView = grid.getListDataView();
 
       Optional<T> newFocusedItemMaybe = Optional.empty();
-      int newFocusedItemIndex = (int) eventData.getNumber(KEY_UP_ELEMENT_FOCUSED_ITEM_INDEX);
+      int newFocusedItemIndex =
+          (int) ev.getEventData().getNumber(KEY_UP_ELEMENT_FOCUSED_ITEM_INDEX);
       if (newFocusedItemIndex >= 0) {
         newFocusedItemMaybe = dataView.getItems().skip(newFocusedItemIndex).findFirst();
       }
 
       if (newFocusedItemMaybe.isPresent()) {
         T newFocusedItem = newFocusedItemMaybe.get();
-        boolean isSpecialKey = eventData.getBoolean(KEY_UP_EVENT_META_KEY)
-            || eventData.getBoolean(KEY_UP_EVENT_CTRL_KEY)
-            || eventData.getBoolean(KEY_UP_EVENT_ALT_KEY);
+        boolean isSpecialKey = ev.getEventData().getBoolean(KEY_UP_EVENT_META_KEY)
+            || ev.getEventData().getBoolean(KEY_UP_EVENT_CTRL_KEY)
+            || ev.getEventData().getBoolean(KEY_UP_EVENT_ALT_KEY);
 
         Object lastFocusedItem = ComponentUtil.getData(grid, LAST_FOCUSED_ITEM);
-        boolean shiftKey = eventData.getBoolean(KEY_UP_EVENT_SHIFT_KEY);
+        boolean shiftKey = ev.getEventData().getBoolean(KEY_UP_EVENT_SHIFT_KEY);
         if (shiftKey) {
           if (lastFocusedItem == null) {
             ComponentUtil.setData(grid, LAST_FOCUSED_ITEM, newFocusedItem);

src/main/java/com/flowingcode/vaadin/addons/gridhelpers/ResponsiveGridHelper.java

@@ -32,9 +32,11 @@
 import java.util.TreeMap;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
+import lombok.experimental.ExtensionMethod;
 
 @SuppressWarnings("serial")
 @RequiredArgsConstructor
+@ExtensionMethod(value = JsonMigration.class, suppressBaseMethods = true)
 class ResponsiveGridHelper<T> implements Serializable {
 
   private final GridHelper<T> helper;
@@ -77,7 +79,7 @@ GridResponsiveStep<T> getOrCreate(int minWidth) {
   private void initialize() {
     Grid<T> grid = helper.getGrid();
     grid.getElement().addEventListener("fcgh-responsive-step", ev -> {
-      apply((int) JsonMigration.getEventData(ev).getNumber("event.detail.step"), false);
+      apply((int) ev.getEventData().getNumber("event.detail.step"), false);
     }).addEventData("event.detail.step").debounce(200, DebouncePhase.TRAILING);
     sendSteps();
   }