Thank You. This is perfect solution:
add(
new Link("linkWithConfirm") {
@Override
public void onClick() {
setResponsePage(Abc.class);
}
@Override
protected void onComponentTag(ComponentTag tag) {
// parent makes attributes
super.onComponentTag(tag);
// modify onclick attribute
String parentOnclick = tag.getAttribute("onclick");
String newOnclick = "if (!confirm('Sure ?')) return false; " +
parentOnclick;
tag.put("onclick", newOnclick);
}
}
.setPopupSettings(new PopupSettings())
);
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