250 lines
7.1 KiB
Java
250 lines
7.1 KiB
Java
package envoy.client.ui.controller;
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import static java.util.function.Predicate.not;
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import java.util.stream.Collectors;
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import javafx.application.Platform;
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import javafx.fxml.FXML;
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import javafx.scene.control.*;
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import javafx.scene.input.MouseEvent;
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import javafx.scene.layout.HBox;
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import envoy.client.data.*;
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import envoy.client.event.BackEvent;
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import envoy.client.ui.control.*;
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import envoy.client.ui.listcell.ListCellFactory;
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import envoy.data.*;
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import envoy.event.GroupCreation;
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import envoy.event.contact.ContactOperation;
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import envoy.util.Bounds;
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import dev.kske.eventbus.*;
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/**
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* Provides a group creation interface. A group name can be entered in the text
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* field at the top. Available users (local chat recipients) are displayed
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* inside a list and can be selected (multiple selection available).
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* <p>
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* When the group creation button is pressed, a {@link GroupCreation} is sent to
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* the server. This controller enforces a valid group name and a non-empty
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* member list (excluding the client user).
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*
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* @author Maximilian Käfer
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* @since Envoy Client v0.1-beta
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*/
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public class GroupCreationTab implements EventListener {
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@FXML
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private Button createButton;
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@FXML
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private Button cancelButton;
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@FXML
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private TextArea groupNameField;
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@FXML
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private ListView<User> userList;
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@FXML
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private Label errorMessageLabel;
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@FXML
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private Button proceedDuplicateButton;
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@FXML
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private Button cancelDuplicateButton;
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@FXML
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private HBox errorProceedBox;
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@FXML
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private ListView<QuickSelectControl> quickSelectList;
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private String name;
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private final LocalDB localDB = Context.getInstance().getLocalDB();
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private static final EventBus eventBus = EventBus.getInstance();
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@FXML
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private void initialize() {
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userList.setCellFactory(new ListCellFactory<>(ContactControl::new));
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createButton.setDisable(true);
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eventBus.registerListener(this);
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userList.getItems()
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.addAll(localDB.getChats()
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.stream()
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.map(Chat::getRecipient)
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.filter(User.class::isInstance)
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.filter(not(localDB.getUser()::equals))
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.map(User.class::cast)
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.collect(Collectors.toList()));
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resizeQuickSelectSpace(0);
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quickSelectList.addEventFilter(MouseEvent.MOUSE_PRESSED, evt -> evt.consume());
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}
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/**
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* Enables the {@code createButton} if at least one contact is selected.
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*
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* @since Envoy Client v0.1-beta
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*/
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@FXML
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private void userListClicked() {
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if (userList.getSelectionModel().getSelectedItem() != null) {
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quickSelectList.getItems().add(new QuickSelectControl(userList.getSelectionModel().getSelectedItem(), this::removeFromQuickSelection));
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createButton.setDisable(quickSelectList.getItems().isEmpty() || groupNameField.getText().isBlank());
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resizeQuickSelectSpace(60);
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userList.getItems().remove(userList.getSelectionModel().getSelectedItem());
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userList.getSelectionModel().clearSelection();
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}
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}
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/**
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* Checks, whether the {@code createButton} can be enabled because text is
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* present in the text field.
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*
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* @since Envoy Client v0.1-beta
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*/
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@FXML
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private void textUpdated() { createButton.setDisable(quickSelectList.getItems().isEmpty() || groupNameField.getText().isBlank()); }
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/**
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* Sends a {@link GroupCreation} to the server and closes this scene.
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* <p>
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* If the given group name is not valid, an error is displayed instead.
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*
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* @since Envoy Client v0.1-beta
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*/
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@FXML
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private void createButtonClicked() {
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name = groupNameField.getText();
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if (!Bounds.isValidContactName(name)) {
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setErrorMessageLabelSize(30);
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errorMessageLabel.setText("The group name is not valid!");
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groupNameField.clear();
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} else if (groupNameAlreadyPresent(name)) {
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setErrorMessageLabelSize(30);
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errorMessageLabel.setText("Name does already exist! Proceed anyways?");
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setProcessPaneSize(30);
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createButton.setDisable(true);
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cancelButton.setDisable(true);
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} else {
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createGroup(name);
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eventBus.dispatch(new BackEvent());
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// Restoring the original design as tabs will always be reused
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setErrorMessageLabelSize(0);
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groupNameField.clear();
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quickSelectList.getItems().forEach(q -> userList.getItems().add(q.getUser()));
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quickSelectList.getItems().clear();
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resizeQuickSelectSpace(0);
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}
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}
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/**
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* Creates a new group with the given name and all selected members.<br>
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* Additionally pops the scene automatically.
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*
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* @param name the chosen group name
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* @since Envoy Client v0.1-beta
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*/
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private void createGroup(String name) {
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Context.getInstance()
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.getClient()
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.send(new GroupCreation(name, quickSelectList.getItems().stream().map(q -> q.getUser().getID()).collect(Collectors.toSet())));
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}
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/**
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* Returns true if the proposed group name is already present in the users
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* {@code LocalDB}.
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*
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* @param newName the chosen group name
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* @return true if this name is already present
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* @since Envoy Client v0.1-beta
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*/
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public boolean groupNameAlreadyPresent(String newName) {
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return localDB.getChats().stream().map(Chat::getRecipient).filter(Group.class::isInstance).map(Contact::getName).anyMatch(newName::equals);
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}
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/**
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* Removes an element from the quickSelectList.
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*
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* @param element the element to be removed.
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* @since Envoy Client v0.3-beta
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*/
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public void removeFromQuickSelection(QuickSelectControl element) {
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quickSelectList.getItems().remove(element);
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userList.getItems().add(element.getUser());
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if (quickSelectList.getItems().isEmpty()) {
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resizeQuickSelectSpace(0);
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createButton.setDisable(true);
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}
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}
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private void resizeQuickSelectSpace(int value) {
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quickSelectList.setPrefHeight(value);
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quickSelectList.setMaxHeight(value);
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quickSelectList.setMinHeight(value);
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}
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@FXML
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private void backButtonClicked() {
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eventBus.dispatch(new BackEvent());
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setErrorMessageLabelSize(0);
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setProcessPaneSize(0);
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}
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@FXML
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private void proceedOnNameDuplication() {
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createButton.setDisable(false);
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cancelButton.setDisable(false);
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createGroup(name);
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eventBus.dispatch(new BackEvent());
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setErrorMessageLabelSize(0);
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setProcessPaneSize(0);
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groupNameField.clear();
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}
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@FXML
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private void cancelOnNameDuplication() {
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createButton.setDisable(false);
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cancelButton.setDisable(false);
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setErrorMessageLabelSize(0);
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setProcessPaneSize(0);
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groupNameField.clear();
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}
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private void setErrorMessageLabelSize(int value) {
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errorMessageLabel.setPrefHeight(value);
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errorMessageLabel.setMinHeight(value);
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errorMessageLabel.setMaxHeight(value);
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}
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private void setProcessPaneSize(int value) {
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proceedDuplicateButton.setPrefHeight(value);
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proceedDuplicateButton.setMinHeight(value);
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proceedDuplicateButton.setMaxHeight(value);
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cancelDuplicateButton.setPrefHeight(value);
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cancelDuplicateButton.setMinHeight(value);
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cancelDuplicateButton.setMaxHeight(value);
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errorProceedBox.setPrefHeight(value);
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errorProceedBox.setMinHeight(value);
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errorProceedBox.setMaxHeight(value);
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}
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@Event
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private void onContactOperation(ContactOperation operation) {
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if (operation.get() instanceof User) Platform.runLater(() -> {
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switch (operation.getOperationType()) {
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case ADD:
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userList.getItems().add((User) operation.get());
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break;
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case REMOVE:
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userList.getItems().removeIf(operation.get()::equals);
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break;
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}
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});
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}
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}
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