Swing/OptionPaneDefaultFocus のバックアップの現在との差分(No.3)

JOptionPaneのデフォルトフォーカス

サンプルコード

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* サンプルコード [#sourcecode]
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#code(link){{
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textField4.addAncestorListener(new AncestorListener() {
  @Override public void ancestorAdded(AncestorEvent event) {
    textField4.requestFocusInWindow();
  @Override public void ancestorAdded(AncestorEvent e) {
    e.getComponent().requestFocusInWindow();
  }
  @Override public void ancestorMoved(AncestorEvent event) {}
  @Override public void ancestorRemoved(AncestorEvent event) {}
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#spanend
  @Override public void ancestorMoved(AncestorEvent e) {
    /* not needed */
  }
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#spanend
  @Override public void ancestorRemoved(AncestorEvent e) {
    /* not needed */
  }
});

• 左上
  • デフォルト
• 左上: Default
  • デフォルトのConfirmDialogの場合、初期フォーカスは入力欄ではなくOKボタンにある

    #spandel
    int result = JOptionPane.showConfirmDialog(frame, textField, "Input Text",
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                     JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);
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    if(result==JOptionPane.OK_OPTION) textArea.setText(textField.getText());
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    int result = JOptionPane.showConfirmDialog(
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        frame, textField, "Input Text",
        JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);
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    if (result == JOptionPane.OK_OPTION) {
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      textArea.setText(textField.getText());
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    }
    #spanend
    

• 右上
  • JOptionPane#createDialog(...)でJDialogを取得し、WindowListener#windowOpenedで、textField.requestFocusInWindow()
• 右上: WindowListener
  • JOptionPane#createDialog(...)でJDialogを取得しWindowListener#windowOpenedでtextField.requestFocusInWindow();を実行
  • Windowを開いたときのフォーカスを指定など

    #spandel
    JOptionPane pane = new JOptionPane(textField, JOptionPane.PLAIN_MESSAGE,
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                                       JOptionPane.OK_CANCEL_OPTION, null, null, null);
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    JOptionPane pane = new JOptionPane(
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        textField, JOptionPane.PLAIN_MESSAGE,
        JOptionPane.OK_CANCEL_OPTION, null, null, null);
    JDialog dialog = pane.createDialog(frame, "Input Text");
    dialog.addWindowListener(new WindowAdapter() {
      @Override public void windowOpened(WindowEvent e) {
        textField.requestFocusInWindow();
      }
    });
    dialog.setVisible(true);
    Object selectedValue = pane.getValue();
    int result = JOptionPane.CLOSED_OPTION;
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    if(selectedValue != null && selectedValue instanceof Integer) {
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      result = ((Integer)selectedValue).intValue();
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    if (selectedValue != null && selectedValue instanceof Integer) {
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      result = ((Integer) selectedValue).intValue();
    }
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    result==JOptionPane.OK_OPTION) textArea.setText(textField.getText());
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    if (result == JOptionPane.OK_OPTION) {
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      textArea.setText(textField.getText());
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    }
    #spanend
    

• 左下
  • textFieldにHierarchyListenerを追加し、hierarchyChangedが呼ばれたときに、textField.requestFocusInWindow()
• 左下: HierarchyListener
  • textFieldにHierarchyListenerを追加しhierarchyChangedが呼ばれたときにtextField.requestFocusInWindow();を実行

    textField3.addHierarchyListener(new HierarchyListener() {
      @Override public void hierarchyChanged(HierarchyEvent e) {
        if((e.getChangeFlags() & HierarchyEvent.SHOWING_CHANGED)!=0
           && textField3.isShowing()) {
          EventQueue.invokeLater(new Runnable(){
        if ((e.getChangeFlags() & HierarchyEvent.SHOWING_CHANGED) != 0
             && textField3.isShowing()) {
          EventQueue.invokeLater(new Runnable() {
            @Override public void run() {
              textField3.requestFocusInWindow();
            }
          });
        }
      }
    });
    #spandel
    int result = JOptionPane.showConfirmDialog(frame, textField3, "Input Text",
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                     JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);
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    if(result==JOptionPane.OK_OPTION) textArea.setText(textField3.getText());
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    int result = JOptionPane.showConfirmDialog(
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        frame, textField3, "Input Text",
        JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);
    #spanadd
    if (result == JOptionPane.OK_OPTION) {
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      textArea.setText(textField3.getText());
    #spanadd
    }
    #spanend
    

• 右下
  • textFieldにaddAncestorListenerを追加し、ancestorAddedが呼ばれたときに、textField.requestFocusInWindow()
  • Swing - Input focus
• 右下: AncestorListener
  • textFieldにaddAncestorListenerを追加しancestorAddedが呼ばれたときにtextField.requestFocusInWindow();を実行
  • Swing - Input focus

• Windowを開いたときのフォーカスを指定
• Swing - Input focus
• Swing - Input focus