Commit 21032025

src/main/java/id/co/gtc/erhacam/AutoCloseAlert.java

@@ -0,0 +1,99 @@
+package id.co.gtc.erhacam;
+
+import javafx.animation.PauseTransition;
+import javafx.application.Platform;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Label;
+import javafx.scene.layout.VBox;
+import javafx.stage.Modality;
+import javafx.stage.Screen;
+import javafx.stage.Stage;
+import javafx.stage.StageStyle;
+import javafx.util.Duration;
+
+import java.util.Optional;
+
+public class AutoCloseAlert {
+
+    private static Stage currentAlertStage;
+    public static String shownTitle  = "";
+    public static String shownContent = "";
+    public static String shownHeader = "";
+
+    private static void clear(){
+        shownTitle = "";
+        shownContent = "";
+        shownHeader = "";
+    }
+
+    /**
+     * Close the current alert if it is shown
+     */
+    public static void close(){
+        Optional.ofNullable(currentAlertStage).ifPresent(Stage::close);
+        currentAlertStage = null;
+        clear();
+    }
+
+    /**
+     * Show an alert with a title, header, content, and automatically close after a few seconds
+     * If called several times, the previous alert will be closed before showing a new one
+     * @param title the title of the alert
+     * @param header the header of the alert
+     * @param content the content of the alert
+     * @param seconds the number of seconds before the alert is closed, or put 0 to keep it open
+     */
+    public static void show(String title, String header, String content, int seconds) {
+        Platform.runLater(()->{
+            // close previous alert before showing a new one
+            Optional.ofNullable(currentAlertStage).ifPresent(Stage::close);
+
+            Stage alertStage = new Stage();
+            alertStage.initModality(Modality.APPLICATION_MODAL);
+            alertStage.initStyle(StageStyle.UTILITY);
+            alertStage.setAlwaysOnTop(true);
+            alertStage.setResizable(false);
+
+            double screenwidth = Screen.getPrimary().getVisualBounds().getWidth();
+            double width = screenwidth/4;
+            double height = width * 9 / 16;
+            Label headerLabel = new Label(header);
+            headerLabel.setStyle("-fx-font-weight: bold; -fx-font-size: 16px;");
+            headerLabel.setMinHeight(height*0.25);
+            Label contentLabel = new Label(content);
+            contentLabel.setStyle("-fx-font-size: 12px;");
+            contentLabel.setMinHeight(height*0.75);
+
+            VBox root = new VBox(10, headerLabel, contentLabel);
+            root.setPrefSize(width, height);
+            root.setAlignment(Pos.CENTER);
+
+            Scene scene = new Scene(root);
+            alertStage.setScene(scene);
+
+            alertStage.setTitle(title);
+            currentAlertStage = alertStage;
+
+            alertStage.show();
+
+            shownHeader = header;
+            shownContent = content;
+            shownTitle = title;
+
+            if (seconds>0){
+                PauseTransition delay = new PauseTransition(Duration.seconds(seconds));
+                delay.setOnFinished(e -> {
+                    alertStage.close();
+                    if (currentAlertStage == alertStage) {
+                        currentAlertStage = null;
+                    }
+                    clear();
+                } );
+                delay.play();
+            }
+
+        });
+
+    }
+}