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Javafxを使用してアプリケーションを開発していますが、タブパインには別のタブがあります。したがって、すべてのアイテムにはTabsのような異なるコントローラーがあり、それぞれのコントローラーにはそれぞれのタブペインに個別のコントローラーがあります。JavaFx：別のタブへの切り替えを無効にするにはどうすればいいですか？
私は何をしたい、彼はテキストフィールドのような現在のタブ上のすべての要素を満たしていない限り、ユーザーが別のタブに切り替えることはできませんで、チェックボックスなど
私は研究とは私の問題ではなくアプローチに近い一つの解決策を見つけたん
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import javafx.beans.InvalidationListener;
import javafx.beans.binding.Bindings;
import javafx.beans.binding.BooleanBinding;
import javafx.beans.binding.ListBinding;
import javafx.beans.binding.LongBinding;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.css.PseudoClass;
import javafx.fxml.FXML;
import javafx.scene.Node;
import javafx.scene.control.Label;
import javafx.scene.control.Tab;
import javafx.scene.control.TabPane;
import javafx.scene.control.TextField;
import javafx.scene.control.TitledPane;
import javafx.scene.control.Tooltip;
import javafx.scene.layout.Pane;
import javafx.scene.web.WebView;
public class MainController {
@FXML
private TextField firstNameTextField ;
@FXML
private TextField lastNameTextField ;
@FXML
private TextField emailTextField ;
@FXML
private TextField zipCodeTextField ;
@FXML
private Tab nameTab ;
@FXML
private Tab contactTab ;
@FXML
private Tab confirmationTab ;
@FXML
private TabPane tabPane ;
@FXML
private TitledPane nameTabErrorList ;
@FXML
private Pane nameTabErrorMessages ;
@FXML
private TitledPane contactTabErrorList ;
@FXML
private Pane contactTabErrorMessages ;
@FXML
private WebView browser ;
@FXML
private Label nameTabErrorInstructions ;
@FXML
private Label contactTabErrorInstructions ;
public void initialize() {
// Bit of a hack. Probably need a ValidationBinding extends BooleanBinding with a message property:
Map<BooleanBinding, String> messages = new HashMap<>();
tabPane.getSelectionModel().select(nameTab);
BooleanBinding firstNameInvalid = emptyTextFieldBinding(firstNameTextField, "First Name is required", messages);
BooleanBinding lastNameInvalid = emptyTextFieldBinding(lastNameTextField, "Last Name is required", messages);
final Pattern emailPattern = Pattern.compile("[a-zA-Z_][a-zA-Z0-9_]*@[a-zA-Z][a-zA-Z0-9_]+(\\.[a-zA-Z][a-zA-Z0-9_]*)+");
BooleanBinding emailInvalid = patternTextFieldBinding(emailTextField, emailPattern, "You must enter a valid email", messages);
final Pattern zipPattern = Pattern.compile("[0-9]{5}");
BooleanBinding zipInvalid = patternTextFieldBinding(zipCodeTextField, zipPattern, "You must enter a 5-digit zip code", messages);
BooleanBinding[] nameTabBindings = { firstNameInvalid, lastNameInvalid } ;
BooleanBinding[] contactTabBindings = { emailInvalid, zipInvalid } ;
BooleanBinding nameTabInvalid = any(nameTabBindings);
BooleanBinding contactTabInvalid = any(contactTabBindings);
contactTab.disableProperty().bind(nameTabInvalid);
confirmationTab.disableProperty().bind(nameTabInvalid.or(contactTabInvalid));
nameTabErrorInstructions.visibleProperty().bind(nameTabInvalid);
contactTabErrorInstructions.visibleProperty().bind(contactTabInvalid);
bindMessageLabels(nameTabBindings, nameTabErrorMessages.getChildren(), messages);
final LongBinding nameTabErrorCount = count(nameTabBindings);
nameTabErrorList.textProperty().bind(Bindings.format("%d %s on this page", nameTabErrorCount,
Bindings.when(nameTabErrorCount.isEqualTo(1)).then("error").otherwise("errors")));
bindMessageLabels(contactTabBindings, contactTabErrorMessages.getChildren(), messages);
final LongBinding contactTabErrorCount = count(contactTabBindings);
contactTabErrorList.textProperty().bind(Bindings.format("%d %s on this page", contactTabErrorCount,
Bindings.when(contactTabErrorCount.isEqualTo(1)).then("error").otherwise("errors")));
browser.getEngine().load("http://www.google.com");
}
private void bindMessageLabels(BooleanBinding[] validationBindings, List<Node> labelList, Map<BooleanBinding, String> messages) {
ListBinding<Node> nodeListBinding = new ListBinding<Node>() {
{
// calling bind(...) here won't work, neither will using WeakInvalidationListeners. Not sure why....
InvalidationListener invalidationListener = obs -> invalidate();
Arrays.stream(validationBindings).forEach(binding ->
binding.addListener(invalidationListener));
}
@Override
protected ObservableList<Node> computeValue() {
return FXCollections.observableList(
Arrays.stream(validationBindings)
.filter(BooleanBinding::get)
.map(messages::get).map(Label::new)
.collect(Collectors.toList())
);
}
};
Bindings.bindContent(labelList, nodeListBinding);
}
private BooleanBinding emptyTextFieldBinding(TextField textField, String message, Map<BooleanBinding, String> messages) {
BooleanBinding binding = Bindings.createBooleanBinding(() ->
textField.getText().trim().isEmpty(), textField.textProperty());
configureTextFieldBinding(binding, textField, message, messages);
return binding ;
}
private BooleanBinding patternTextFieldBinding(TextField textField, Pattern pattern, String message, Map<BooleanBinding, String> messages) {
BooleanBinding binding = Bindings.createBooleanBinding(() ->
!pattern.matcher(textField.getText()).matches(), textField.textProperty());
configureTextFieldBinding(binding, textField, message, messages);
return binding ;
}
private void configureTextFieldBinding(BooleanBinding binding, TextField textField, String message, Map<BooleanBinding, String> messages) {
messages.put(binding, message);
if (textField.getTooltip() == null) {
textField.setTooltip(new Tooltip());
}
String tooltipText = textField.getTooltip().getText();
binding.addListener((obs, oldValue, newValue) -> {
updateTextFieldValidationStatus(textField, tooltipText, newValue, message);
});
updateTextFieldValidationStatus(textField, tooltipText, binding.get(), message);
}
private BooleanBinding any(BooleanBinding[] bindings) {
return Bindings.createBooleanBinding(() ->
Arrays.stream(bindings).anyMatch(BooleanBinding::get), bindings);
}
private LongBinding count(BooleanBinding[] bindings) {
return Bindings.createLongBinding(() ->
Arrays.stream(bindings).filter(BooleanBinding::get).collect(Collectors.counting()), bindings);
}
private void updateTextFieldValidationStatus(TextField textField,
String defaultTooltipText, boolean invalid, String message) {
textField.pseudoClassStateChanged(PseudoClass.getPseudoClass("validation-error"), invalid);
String tooltipText ;
if (invalid) {
tooltipText = message;
} else {
tooltipText = defaultTooltipText;
}
if (tooltipText == null || tooltipText.isEmpty()) {
textField.setTooltip(null);
} else {
Tooltip tooltip = textField.getTooltip();
if (tooltip == null) {
textField.setTooltip(new Tooltip(tooltipText));
} else {
tooltip.setText(tooltipText);
}
}
}
}
しかし、多くの場合、私は別のコントローラに似て達成することができますどのようにタブごとに異なるコントローラを持っているよう：
この applicationに使用され、開発者は、彼は次のようにメインコントローラにすべてをかける私より少し異なっていますTabPaneManager.java
public class TabPaneManager {
@FXML
private TabPane tabPane ;
@FXML
private Tab aTab ;
@FXML
private Tab bTab ;
@FXML
private Tab cTab ;
public void initialize() {
}
}
aTabController.java
public class aTabController {
@FXML
private JFXCheckBox aCheckBox ;
@FXML
private JFXCheckBox bCheckBox ;
@FXML
private JFXComboBox<String> aComboBox ;
@FXML
private JFXTextField aTextField ;
@FXML
private JFXTextField bTextField ;
@FXML
private JFXTextField cTextField ;
public void initialize() {
}
}
bTabController.java
public class bTabController {
@FXML
private JFXCheckBox aCheckBox ;
@FXML
private JFXTextField aTextField ;
@FXML
private JFXTextField bTextField ;
public void initialize() {
}
}
cTabController.java
public class cTabController {
@FXML
private JFXTextField aTextField ;
@FXML
private JFXTextField bTextField ;
@FXML
private JFXTextField cTextField ;
@FXML
private JFXButton aButton ;
public void initialize() {
}
}