Examples of javax.swing.InputVerifier

javax.swing.InputVerifier
program demonstrates the use of the Swing InputVerifier class. // It creates two text fields; the first of the text fields expects the // string "pass" as input, and will allow focus to advance out of it // only after that string is typed in by the user. public class VerifierTest extends JFrame { public VerifierTest() { JTextField tf1 = new JTextField ("Type \"pass\" here"); getContentPane().add (tf1, BorderLayout.NORTH); tf1.setInputVerifier(new PassVerifier()); JTextField tf2 = new JTextField ("TextField2"); getContentPane().add (tf2, BorderLayout.SOUTH); WindowListener l = new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }; addWindowListener(l); } class PassVerifier extends InputVerifier { public boolean verify(JComponent input) { JTextField tf = (JTextField) input; return "pass".equals(tf.getText()); } } public static void main(String[] args) { Frame f = new VerifierTest(); f.pack(); f.setVisible(true); } } @since 1.3

          }
        }
      }
    });


    inputText.setInputVerifier(new InputVerifier() {
      public boolean verify(JComponent comp) {
        boolean returnValue = true;
        JTextField textField = (JTextField) comp;
        String content = textField.getText();
        if (content.length() != 0) {

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      add(p7);


      add(Box.createVerticalGlue());
      
      configurationURL.setToolTipText("A complete and valid URL identifying the location of a valid log4 xml configuration file to auto-configure Receivers and other Plugins");
      configurationURL.setInputVerifier(new InputVerifier() {


        public boolean verify(JComponent input)
        {
            try {
                new URL(configurationURL.getText());

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      add(p7);


      add(Box.createVerticalGlue());
      
      configurationURL.setToolTipText("A complete and valid URL identifying the location of a valid log4 xml configuration file to auto-configure Receivers and other Plugins");
      configurationURL.setInputVerifier(new InputVerifier() {


        public boolean verify(JComponent input)
        {
            try {
                new URL(configurationURL.getText());

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      return false;
    else {
      Component focusOwner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
      if (focusOwner != null && focusOwner instanceof DataField) {
        DataField df = (DataField)focusOwner;
        InputVerifier verifier = df.getInputVerifier();
        if (verifier != null) {
          return verifier.shouldYieldFocus(df);
        }
      }
    }
    return true;
  }

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      return false;
    else {
      Component focusOwner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
      if (focusOwner != null && focusOwner instanceof DataField) {
        DataField df = (DataField)focusOwner;
        InputVerifier verifier = df.getInputVerifier();
        if (verifier != null) {
          return verifier.shouldYieldFocus(df);
        }
      }
    }
    return true;
  }

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      return false;
    else {
      Component focusOwner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
      if (focusOwner != null && focusOwner instanceof DataField) {
        DataField df = (DataField)focusOwner;
        InputVerifier verifier = df.getInputVerifier();
        if (verifier != null) {
          return verifier.shouldYieldFocus(df);
        }
      }
    }
    return true;
  }

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      l = new JLabel("Адрес линка");
      l.setBounds(insets.left+10, insets.top+40, 180, 20);
      add(l);
      linkAddress = new JTextField(10);
      linkAddress.setBounds(insets.left+190, insets.top+40, 190, 20);
      linkAddress.setInputVerifier(new InputVerifier() {


        @Override
        public boolean verify(JComponent input) {
          if (input instanceof JTextField) {
            String text = ((JTextField) input).getText();

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            public void actionPerformed(ActionEvent e) {
                updateModel();
            }
        });


        textComponent.setInputVerifier(new InputVerifier() {


            public boolean verify(JComponent c) {
                updateModel();
                // release focus after coloring the field...
                return true;

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        this.defaultBGColor = textComponent.getBackground();
        this.defaultToolTip = textComponent.getToolTipText();
        this.textComponent = textComponent;


        if (checkOnFocusLost) {
            textComponent.setInputVerifier(new InputVerifier() {


                public boolean verify(JComponent c) {
                    updateModel();
                    // release focus after coloring the field...
                    return true;

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//        }
        /*
         * Set an input verifier to prevent the cell losing focus when the value
         * is invalid
         */
        textField.setInputVerifier(new InputVerifier() {
            @Override
            public boolean verify(JComponent input) {
                JFormattedTextField ftf = (JFormattedTextField) input;
                return ftf.isEditValid();
            }

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