package com.vaadin.tests.components.textarea;
import com.vaadin.event.FieldEvents.TextChangeEvent;
import com.vaadin.event.FieldEvents.TextChangeListener;
import com.vaadin.tests.components.TestBase;
import com.vaadin.ui.AbstractField;
import com.vaadin.ui.AbstractTextField;
import com.vaadin.ui.AbstractTextField.TextChangeEventMode;
import com.vaadin.ui.Button;
import com.vaadin.ui.Label;
import com.vaadin.ui.TextArea;
import com.vaadin.ui.TextField;
public class TextAreaCursorPosition extends TestBase {
private TextField cursorPosition = new TextField("Cursor position");
@Override
public void setup() {
Label label = new Label(
"Test of calculation of cursor position of TextArea");
TextArea textArea = new TextArea();
addListener(textArea);
addComponent(label);
addComponent(textArea);
addComponent(cursorPosition);
cursorPosition.setValue("?");
addComponent(new Button("Force position update"));
}
public void addListener(AbstractField newField) {
AbstractTextField newTextField = (AbstractTextField) newField;
newTextField.setTextChangeEventMode(TextChangeEventMode.EAGER);
newTextField.addListener(new TextChangeListener() {
@Override
public void textChange(TextChangeEvent event) {
AbstractTextField component = (AbstractTextField) event
.getComponent();
cursorPosition.setValue(String.valueOf(component
.getCursorPosition()));
}
});
}
@Override
protected String getDescription() {
return "Writing something in the field updates the cursor position field. The position field can also be updated using the button.";
}
@Override
protected Integer getTicketNumber() {
return 7726;
}
}