nathanmcrae/numbers-station
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Handle unsaved changes in message editor

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Window title shows asterisk of changes are unsaved.

Anything that would erase/overwrite message prompts a confirmation
dialog.
This commit is contained in:
Nathan McRae 2025-02-23 14:24:39 -08:00
parent 97c3cc3243
commit 705620d0a2
2 changed files with 84 additions and 2 deletions
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15
src/main/java/name/nathanmcrae/numbersstation/Main.java
View File

@ -67,9 +67,22 @@ public class Main extends Application {
primaryStage.setScene(new Scene(root));
primaryStage.show();
} else {
Parent root = FXMLLoader.load(getClass().getResource("MainView.fxml"));
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("MainView.fxml"));
Parent root = fxmlLoader.load();
MainController controller = fxmlLoader.getController();
primaryStage.setOnCloseRequest(e -> {
if (!controller.handleCloseRequest()) {
e.consume();
} else {
Platform.exit();
}
});
primaryStage.setTitle("Numbers Station");
primaryStage.setScene(new Scene(root));
primaryStage.titleProperty().bindBidirectional(controller.windowTitle);
primaryStage.show();
logger.info("Application started");
}

71
src/main/java/name/nathanmcrae/numbersstation/MainController.java
View File

@ -12,14 +12,19 @@ import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.Optional;
import java.util.Random;
import java.util.ResourceBundle;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.ButtonType;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
@ -41,6 +46,10 @@ public class MainController implements Initializable {
private StringProperty selectedStationName = new SimpleStringProperty();
private SimpleBooleanProperty unsavedChanges = new SimpleBooleanProperty();
public StringProperty windowTitle = new SimpleStringProperty("Numbers Station");
@FXML
private Label lastRetrievedLabel;
@ -100,12 +109,20 @@ public class MainController implements Initializable {
selectStationStage = new Stage();
selectStationStage.initModality(Modality.APPLICATION_MODAL);
selectStationStage.setUserData("test");
selectStationStage.setUserData(null);
selectStationStage.setTitle("Numbers Station Selection");
selectStationStage.setScene(new Scene(root));
selectStationStage.show();
selectStationStage.setOnHiding(event -> {
String newStationName = (String)selectStationStage.getUserData();
if (newStationName == null) {
return;
}
if (unsavedChanges.get()) {
if (!confirmSaveChanges()) {
return;
}
}
StationSettings newSelectedStation = settings.getStations().stream()
.filter(station -> station.getName().equals(newStationName))
.findFirst()
@ -122,12 +139,17 @@ public class MainController implements Initializable {
@FXML
private void handleSetAsNextMessageButtonPress() {
saveMessage();
}
private void saveMessage() {
try {
if (!Files.exists(selectedStation.stationPath())) {
Files.createDirectories(selectedStation.stationPath());
}
Files.write(selectedStation.nextMessagePath(), messageTextArea.getText().getBytes());
unsavedChanges.set(false);
} catch (IOException e) {
String message = "Failed to write next message to " + selectedStation.nextMessagePath().toString();
logger.log(Level.SEVERE, message, e);
@ -210,6 +232,7 @@ public class MainController implements Initializable {
code == KeyCode.DIGIT7 ||
code == KeyCode.DIGIT8 ||
code == KeyCode.DIGIT9)) {
unsavedChanges.set(true);
if (cursorPosition < messageTextArea.getLength()) {
char currentChar = messageTextArea.getText().charAt(cursorPosition);
@ -232,6 +255,18 @@ public class MainController implements Initializable {
splitPane.setDividerPositions(1.0);
}
});
unsavedChanges.addListener((obs2, wasUnsaved, isNowUnsaved) -> {
if (isNowUnsaved) {
if (!windowTitle.get().startsWith("*")) {
windowTitle.set("*" + windowTitle.get());
}
} else {
if (windowTitle.get().startsWith("*")) {
windowTitle.set(windowTitle.get().substring(1, windowTitle.get().length()));
}
}
});
}
private void updateStationSettings(StationSettings newStationSettings) {
@ -296,6 +331,40 @@ public class MainController implements Initializable {
}
}
unsavedChanges.set(false);
messageTextArea.setText(messageText);
}
/**
* @return Whether to continue with the action that prompted the confirmation
*/
public boolean confirmSaveChanges() {
Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "Do you want to save your changes to the message?", ButtonType.YES, ButtonType.NO, ButtonType.CANCEL);
alert.setHeaderText(null);
Optional<ButtonType> result = alert.showAndWait();
if (!result.isPresent()) {
return false;
}
if (result.get() == ButtonType.YES) {
saveMessage();
return true;
} else if (result.get() == ButtonType.NO) {
return true;
} else {
return false;
}
}
/**
* @return whether close should continue or not
*/
public boolean handleCloseRequest() {
if (unsavedChanges.get()) {
return confirmSaveChanges();
}
return true;
}
}