THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Link removeLink = new Link("removeLink") {
@Override
public void onClick() {
// do something you want to confirm beforehand
}
};
removeLink.add( new SimpleAttributeModifier("onclick", "return confirm('are you sure?');"));
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SimpleAttributeModifier will replace any existing onclick handler in the html. We can instead add our javascript to any existing javascript by attaching an IBehavior object to the Link. First we define a class that implements IBehavior:
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class JavascriptEventConfirmation extends AbstractBehavior {
private final String msg;
private final String event;
public JavascriptEventConfirmation(String event, String msg) {
this.msg = msg;
this.event = event;
}
@Override
public void onComponentTag(Component component, ComponentTag tag) {
String script = (String) tag.getAttributes().get(event);
script = "confirm('" + msg + "'); " + script;
tag.put(event, script);
}
}
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Then we add the behavior instead of an attribute modifier:
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removeLink.add(new JavascriptEventConfirmation("onclick", "are you sure?"));
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