client/src/main/java/envoy/client/ui/control/QuickSelectControl.java

@@ -11,17 +11,18 @@ import envoy.client.util.IconUtil;
 import envoy.data.User;
 
 /**
- * Displays a user as a quickSelectControl which is used in the quickSelectList.
+ * Displays an {@link User} as a quickSelectControl which is used in the
+ * quickSelectList.
  * 
  * @author Maximilian Käfer
  * @since Envoy Client v0.3-beta
  */
 public class QuickSelectControl extends VBox {
 
-	User user;
+	private User user;
 
 	/**
-	 * Creates an instance of the {@link QuickSelectControl}.
+	 * Creates an instance of the {@code QuickSelectControl}.
 	 * 
 	 * @param user the user whose data is used to create this instance.
 	 * @param tab  the parent tab ({@link GroupCreationTab}).
@@ -49,7 +50,6 @@ public class QuickSelectControl extends VBox {
 		clip.setArcHeight(32);
 		clip.setArcWidth(32);
 		contactProfilePic.setClip(clip);
-		setAlignment(Pos.TOP_CENTER);
 		picHold.getChildren().add(contactProfilePic);
 		stackPane.getChildren().add(picHold);
 
@@ -59,7 +59,7 @@ public class QuickSelectControl extends VBox {
 		hBox.setMinHeight(12);
 		var region = new Region();
 		hBox.getChildren().add(region);
-		hBox.setHgrow(region, Priority.ALWAYS);
+		HBox.setHgrow(region, Priority.ALWAYS);
 
 		var removeBtn = new Button();
 		removeBtn.setPrefSize(12, 12);
@@ -85,7 +85,7 @@ public class QuickSelectControl extends VBox {
 	}
 
 	/**
-	 * @return the user whose data is used in this instance.
+	 * @return the user whose data is used in this instance
 	 * @since Envoy Client v0.3-beta
 	 */
 	public User getUser() { return user; }

client/src/main/java/envoy/client/ui/controller/GroupCreationTab.java

@@ -7,6 +7,7 @@ import java.util.stream.Collectors;
 import javafx.application.Platform;
 import javafx.fxml.FXML;
 import javafx.scene.control.*;
+import javafx.scene.input.MouseEvent;
 import javafx.scene.layout.HBox;
 
 import envoy.client.data.*;
@@ -82,6 +83,7 @@ public class GroupCreationTab implements EventListener {
 				.map(User.class::cast)
 				.collect(Collectors.toList()));
 		resizeQuickSelectSpace(0);
+		quickSelectList.addEventFilter(MouseEvent.MOUSE_PRESSED, evt -> evt.consume());
 	}
 
 	/**
@@ -91,12 +93,14 @@ public class GroupCreationTab implements EventListener {
 	 */
 	@FXML
 	private void userListClicked() {
-		createButton.setDisable(userList.getSelectionModel().isEmpty() || groupNameField.getText().isBlank());
+		if (userList.getSelectionModel().getSelectedItem() != null) {
 			quickSelectList.getItems().add(new QuickSelectControl(userList.getSelectionModel().getSelectedItem(), this));
+			createButton.setDisable(quickSelectList.getItems().isEmpty() || groupNameField.getText().isBlank());
 			resizeQuickSelectSpace(60);
 			userList.getItems().remove(userList.getSelectionModel().getSelectedItem());
 			userList.getSelectionModel().clearSelection();
 		}
+	}
 
 	/**
 	 * Checks, whether the {@code createButton} can be enabled because text is
@@ -105,7 +109,7 @@ public class GroupCreationTab implements EventListener {
 	 * @since Envoy Client v0.1-beta
 	 */
 	@FXML
-	private void textUpdated() { createButton.setDisable(quickSelectList.getItems().size() == 0 || groupNameField.getText().isBlank()); }
+	private void textUpdated() { createButton.setDisable(quickSelectList.getItems().isEmpty() || groupNameField.getText().isBlank()); }
 
 	/**
 	 * Sends a {@link GroupCreation} to the server and closes this scene.
@@ -173,7 +177,7 @@ public class GroupCreationTab implements EventListener {
 	public void removeFromQuickSelection(QuickSelectControl element) {
 		quickSelectList.getItems().remove(element);
 		userList.getItems().add(element.getUser());
-		if (quickSelectList.getItems().size() == 0) {
+		if (quickSelectList.getItems().isEmpty()) {
 			resizeQuickSelectSpace(0);
 			createButton.setDisable(true);
 		}