disable clear button when no utxos are selected

src/main/java/com/sparrowwallet/sparrow/wallet/UtxosController.java

@@ -83,6 +83,9 @@ public class UtxosController extends WalletFormController implements Initializab
     @FXML
     private Button mixTo;
 
+    @FXML
+    private Button clear;
+
     @FXML
     private Button sendSelected;
 
@@ -172,6 +175,7 @@ public class UtxosController extends WalletFormController implements Initializab
             }
         }
 
+        clear.setDisable(true);
         sendSelected.setDisable(true);
         sendSelected.setTooltip(new Tooltip("Send selected UTXOs. Use " + (org.controlsfx.tools.Platform.getCurrent() == org.controlsfx.tools.Platform.OSX ? "Cmd" : "Ctrl") + "+click to select multiple." ));
         mixSelected.managedProperty().bind(mixSelected.visibleProperty());
@@ -199,6 +203,7 @@ public class UtxosController extends WalletFormController implements Initializab
     private void updateButtons(BitcoinUnit unit) {
         List<Entry> selectedEntries = getSelectedEntries();
 
+        clear.setDisable(selectedEntries.isEmpty());
         sendSelected.setDisable(selectedEntries.isEmpty());
         mixSelected.setDisable(selectedEntries.isEmpty() || !AppServices.isConnected());
 

src/main/resources/com/sparrowwallet/sparrow/wallet/utxos.fxml

@@ -83,7 +83,7 @@
                         </HBox>
                         <Region HBox.hgrow="ALWAYS" />
                         <HBox styleClass="utxos-buttons-box" spacing="20" alignment="BOTTOM_RIGHT">
-                            <Button text="Clear" onAction="#clear"/>
+                            <Button fx:id="clear" text="Clear" onAction="#clear"/>
                             <Button fx:id="mixSelected" text="Mix Selected" graphicTextGap="5" onAction="#mixSelected">
                                 <graphic>
                                     <Glyph fontFamily="Font Awesome 5 Free Solid" icon="RANDOM" fontSize="12" />