SpigotCore_Main/src/de/steamwar/inventory/SchematicSelector.java

@@ -58,6 +58,8 @@ public class SchematicSelector {
     private int depth = 0;
     private Sorting sorting = Sorting.NAME;
     private boolean invertSorting = false;
+    @Getter
+    private SchematicNode lastParent;
 
     public SchematicSelector(Player player, SelectorTarget target, Consumer<SchematicNode> callback) {
         this.player = player;
@@ -77,10 +79,17 @@ public class SchematicSelector {
         if(publicMode == PublicMode.PUBLIC_ONLY) {
             this.user = SteamwarUser.get(0);
         }
+        injectable.onSelectorOpen(this, SchematicSelectorInjectable.OpenFrom.FRESH);
         openList(null);
     }
 
+    public void reOpen() {
+        injectable.onSelectorOpen(this, SchematicSelectorInjectable.OpenFrom.REOPEN);
+        openList(lastParent);
+    }
+
     private void openList(SchematicNode parent) {
+        lastParent = parent;
         List<SchematicNode> nodes = applySorting(filter.isFilter()?getFilteredSchematics():getSchematicList(parent));
 
         if(sdoTrigger) {

SpigotCore_Main/src/de/steamwar/inventory/SchematicSelectorInjectable.java

@@ -42,4 +42,11 @@ public interface SchematicSelectorInjectable {
     default boolean onFolderCreate(SchematicSelector selector, String name) {return true;}
 
     default void onNodeFilter(SchematicSelector selector, SchematicNode node) {}
+
+    default void onSelectorOpen(SchematicSelector selector, OpenFrom from) {}
+
+    enum OpenFrom {
+        FRESH,
+        REOPEN
+    }
 }