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javaswingeventsjeditorpane

What JEditorPane event should I create a listener for?

Suppose I have a JEditorPane in a JPanel. I want to be able to execute a callback each time the user enters/pastes text in the JEditorPane component. What type of listener should I create?

Solution

  • One way of doing this is to create a custom Document and override the insertString method. For example:

    class CustomDocument extends PlainDocument {
    @Override
    public void insertString(int offset, String string, AttributeSet attributeSet)
            throws BadLocationException {
        // Do something here
        super.insertString(offset, string, attributeSet);
    }
}

    This allows you to find out what is inserted and veto it if you wish (by not calling super.insertString). You can apply this document using this:

    editorPane.setDocument(new CustomDocument());