Hi there,
I'm trying to implement a counter for a textarea. Something like this is
working for me
final TextArea textArea = new TextArea();final Label counter = new
Label("Number of characters: 0");... private void addlistener() {
textArea.addKeyUpHandler(new KeyUpHandler() {
public void onKeyUp(KeyUpEvent keyUpEvent) {
counter.setText(" Number of
characters:"+textArea.getText().length());
}
});
In my project the TextArea is enhanced e.g. for displaying validation errors.
public class ValidatableTextarea extends ComplexPanel
private FlowPanel rootPanel;
protected TextArea input;
private Label errorLabel;
@UiConstructor
public ValidatableTextarea() {
input = new TextArea();
rootPanel = new FlowPanel();
rootPanel.add(input);
setElement(rootPanel.getElement());
}
...
public void setText(String text) {
input.setText(String Text);
}
...
public void addKeyUpHandler(KeyUpHandler keyUpHandler) {
input.addKeyUpHandler(keyUpHandler);
}
My Presenter is calling ValidatableTextarea.addKeyUpHandler onBind but the
keyhandler seems not to be added. The same thing happens when I call
ValidatableTextarea.setText
My Presenter is a dialog, so when I call those functions in Presenter.openat
least
ValidatableTextarea.setText is working and the given text is displayed, but
there is still no keyUpHandler working.
So is there any magic working I don't see? Any event I can listen to be
sure that my ValidatableTextarea is ready to accept my keyUpHandler? Or is
my given Handler somehow overwritten?
Thanks in advance,
Marco
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