nvm, that doesn't work

Author: ghzdude

src/main/java/gregtech/common/covers/filter/BaseFilterContainer.java

@@ -215,14 +215,15 @@ public IPanelHandler getFilterHandler(PanelSyncManager syncManager) {
 
     /** Uses Cleanroom MUI */
     public IWidget initUI(GuiData data, PanelSyncManager manager) {
+        IPanelHandler panel = getFilterHandler(manager);
+
         return Flow.row().coverChildrenHeight()
                 .marginBottom(2).widthRel(1f)
                 .child(new ItemSlot()
                         .slot(SyncHandlers.itemSlot(this, 0)
                                 .filter(this::isItemValid)
                                 .singletonSlotGroup(101)
                                 .changeListener((newItem, onlyAmountChanged, client, init) -> {
-                                    IPanelHandler panel = getFilterHandler(manager);
                                     if (!isItemValid(newItem) || (newItem.isEmpty() && panel.isPanelOpen())) {
                                         panel.closePanel();
                                     }
@@ -235,7 +236,6 @@ public IWidget initUI(GuiData data, PanelSyncManager manager) {
                                 GTGuiTextures.FILTER_SETTINGS_OVERLAY.asIcon().size(16))
                         .setEnabledIf(w -> hasFilter())
                         .onMousePressed(i -> {
-                            IPanelHandler panel = getFilterHandler(manager);
                             if (!panel.isPanelOpen()) {
                                 setMaxTransferSize(getMaxTransferSize());
                                 panel.openPanel();

src/main/java/gregtech/common/covers/filter/IFilter.java

@@ -30,7 +30,7 @@ public interface IFilter {
 
     default IPanelHandler createPanelHandler(PanelSyncManager syncManager) {
         return syncManager.panel(getContainerStack().getTranslationKey(), (syncManager1, syncHandler) ->
-                createPopupPanel(syncManager).child(createWidgets(syncManager)), true);
+                createPopupPanel(syncManager), true);
     }
 
     ItemStack getContainerStack();