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

121 lines
3.6 KiB
Java

package envoy.client.ui.controller;
import java.util.function.Consumer;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.application.Platform;
import javafx.fxml.FXML;
import javafx.scene.control.*;
import javafx.scene.control.Alert.AlertType;
import envoy.client.event.BackEvent;
import envoy.client.event.SendEvent;
import envoy.client.ui.listcell.ContactControl;
import envoy.client.ui.listcell.ListCellFactory;
import envoy.data.User;
import envoy.event.ElementOperation;
import envoy.event.EventBus;
import envoy.event.contact.ContactOperation;
import envoy.event.contact.UserSearchRequest;
import envoy.event.contact.UserSearchResult;
import envoy.util.EnvoyLog;
/**
* Provides a search bar in which a user name (substring) can be entered. The
* users with a matching name are then displayed inside a list view. A
* {@link UserSearchRequest} is sent on every keystroke.
* <p>
* <i>The actual search algorithm is implemented on the server.
* <p>
* To create a group, a button is available that loads the
* {@link GroupCreationTab}.
* <p>
* Project: <strong>envoy-client</strong><br>
* File: <strong>ContactSearchScene.java</strong><br>
* Created: <strong>07.06.2020</strong><br>
*
* @author Leon Hofmeister
* @author Maximilian K&auml;fer
* @since Envoy Client v0.1-beta
*/
public class ContactSearchTab {
@FXML
private TextArea searchBar;
@FXML
private ListView<User> userList;
private Alert alert = new Alert(AlertType.CONFIRMATION);
private User currentlySelectedUser;
private final Consumer<ContactOperation> handler = e -> {
final var contact = e.get();
if (e.getOperationType() == ElementOperation.ADD) Platform.runLater(() -> {
userList.getItems().remove(contact);
if (currentlySelectedUser != null && currentlySelectedUser.equals(contact) && alert.isShowing()) alert.close();
});
};
private static final EventBus eventBus = EventBus.getInstance();
private static final Logger logger = EnvoyLog.getLogger(ChatScene.class);
@FXML
private void initialize() {
userList.setCellFactory(new ListCellFactory<>(ContactControl::new));
eventBus.register(UserSearchResult.class,
response -> Platform.runLater(() -> { userList.getItems().clear(); userList.getItems().addAll(response.get()); }));
eventBus.register(ContactOperation.class, handler);
}
/**
* Disables the clear and search button if no text is present in the search bar.
*
* @since Envoy Client v0.1-beta
*/
@FXML
private void sendRequest() {
final var text = searchBar.getText().strip();
if (!text.isBlank()) eventBus.dispatch(new SendEvent(new UserSearchRequest(text)));
else userList.getItems().clear();
}
/**
* Clears the text in the search bar and the items shown in the list.
* Additionally disables both clear and search button.
*
* @since Envoy Client v0.1-beta
*/
@FXML
private void clear() {
searchBar.setText(null);
userList.getItems().clear();
}
/**
* Sends an {@link ContactOperation} for the selected user to the
* server.
*
* @since Envoy Client v0.1-beta
*/
@FXML
private void userListClicked() {
final var user = userList.getSelectionModel().getSelectedItem();
if (user != null) {
currentlySelectedUser = user;
final var event = new ContactOperation(currentlySelectedUser, ElementOperation.ADD);
// Sends the event to the server
eventBus.dispatch(new SendEvent(event));
// Removes the chosen user and updates the UI
userList.getItems().remove(currentlySelectedUser);
eventBus.dispatch(event);
logger.log(Level.INFO, "Added user " + currentlySelectedUser);
}
}
@FXML
private void backButtonClicked() { eventBus.dispatch(new BackEvent()); }
}