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package com.vaadin.tests.contextclick;
import com.vaadin.event.ContextClickEvent;
import com.vaadin.event.ContextClickEvent.ContextClickListener;
import com.vaadin.server.VaadinRequest;
import com.vaadin.tests.components.AbstractTestUIWithLog;
import com.vaadin.ui.AbstractComponent;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.HorizontalLayout;
public abstract class AbstractContextClickUI<T extends AbstractComponent, E extends ContextClickEvent>
extends AbstractTestUIWithLog {
private final class ListenerHandler implements Button.ClickListener {
private boolean hasListener = false;
private final ContextClickListener listener;
public ListenerHandler(ContextClickListener listener) {
this.listener = listener;
}
@Override
public void buttonClick(ClickEvent event) {
if (!hasListener) {
testComponent.addContextClickListener(listener);
event.getButton().setDescription("Remove listener");
hasListener = true;
} else {
testComponent.removeContextClickListener(listener);
event.getButton().setDescription("Add listener");
hasListener = false;
}
}
}
protected T testComponent;
private ContextClickListener defaultListener = event -> log(
"ContextClickEvent: (" + event.getClientX() + ", "
+ event.getClientY() + ")");
private ContextClickListener typedListener = event -> {
try {
E typedEvent = (E) event;
handleContextClickEvent(typedEvent);
} catch (Exception e) {
log("UNEXPECTED EVENT TYPE!");
}
};
@Override
protected void setup(VaadinRequest request) {
testComponent = createTestComponent();
testComponent.setId("testComponent");
addComponent(testComponent);
addComponent(createContextClickControls());
}
protected abstract T createTestComponent();
protected abstract void handleContextClickEvent(E event);
protected HorizontalLayout createContextClickControls() {
HorizontalLayout contextClickControls = new HorizontalLayout();
contextClickControls
.addComponent(new Button("Add/Remove default listener",
new ListenerHandler(defaultListener)));
contextClickControls
.addComponent(new Button("Add/Remove typed listener",
new ListenerHandler(typedListener)));
return contextClickControls;
}
}
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