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Oundroni
Asked: 2020-05-07 05:37:13 +0800 CST 2020-05-07 05:37:13 +0800 CST

Abort Control+V (Paste) in JavaFX

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I have a file .fxmlwhere I have defined a control PasswordFieldand an event KeyPressed:

<PasswordField fx:id="clave" onKeyPressed="#teclaPulsada" prefWidth="170.0" />

I want to prevent someone from pasting a copied key and thus force it to be typed. I'm trying the following code to detect the control or command key (depending on whether it's win or mac) but I don't know how to detect the v key (control/command + v) at the same time

@FXML
    void teclaPulsada(KeyEvent keyEvent) {
       if (keyEvent.getCode() == KeyCode.COMMAND) {
          System.out.println("pulsado command");
          keyEvent.consume();

          if (keyEvent.getText() == "v") {
             System.out.println("pulsada la v");
             keyEvent.consume();
          }
       }
    }
java

1 Answers

  1. Best Answer

    You must use a listener for an instance of the class KeyCodeCombination:

    final KeyCodeCombination keyComb = new KeyCodeCombination(KeyCode.V, KeyCombination.CONTROL_DOWN);
miPasswordField.addEventHandler(KeyEvent.KEY_RELEASED, event -> {
    if (keyComb.match(event)) {
        System.out.println("Se ha presionado Ctrl+V.");          
    }
});
    • 0