package org.jboss.errai.ui.cordova.events.touch;
import com.google.gwt.event.dom.client.TouchCancelEvent;
import com.google.gwt.event.dom.client.TouchEndEvent;
import com.google.gwt.event.dom.client.TouchMoveEvent;
import com.google.gwt.event.dom.client.TouchStartEvent;
import com.google.gwt.user.client.ui.Widget;
import org.jboss.errai.ui.cordova.events.touch.pinch.OffsetProvider;
import org.jboss.errai.ui.cordova.events.touch.pinch.PinchEvent;
import org.jboss.errai.ui.cordova.events.touch.pinch.PinchHandler;
import org.jboss.errai.ui.cordova.events.touch.pinch.PinchRecognizer;
import org.jboss.errai.ui.cordova.events.touch.swipe.*;
import org.jboss.errai.ui.cordova.events.touch.longtap.LongTapEvent;
import org.jboss.errai.ui.cordova.events.touch.longtap.LongTapHandler;
import org.jboss.errai.ui.cordova.events.touch.longtap.LongTapRecognizer;
/**
* @author edewit@redhat.com
*/
public class GestureUtility {
private final Widget source;
public GestureUtility(Widget source) {
this.source = source;
}
public void addLongTapHandler(LongTapHandler handler) {
LongTapRecognizer recognizer = new LongTapRecognizer(source);
registerRecognizer(recognizer);
source.addHandler(handler, LongTapEvent.getType());
}
public void addSwipeStartHandler(SwipeStartHandler handler) {
initialiseSwipeRecognizer();
source.addHandler(handler, SwipeStartEvent.getType());
}
public void addSwipeMoveHandler(SwipeMoveHandler handler) {
initialiseSwipeRecognizer();
source.addHandler(handler, SwipeMoveEvent.getType());
}
public void addSwipeEndHandler(SwipeEndHandler handler) {
initialiseSwipeRecognizer();
source.addHandler(handler, SwipeEndEvent.getType());
}
public void addPinchHandler(PinchHandler handler) {
PinchRecognizer recognizer = new PinchRecognizer(source, new OffsetProvider() {
@Override
public int getLeft() {
return source.getAbsoluteLeft();
}
@Override
public int getTop() {
return source.getAbsoluteTop();
}
});
registerRecognizer(recognizer);
source.addHandler(handler, PinchEvent.getType());
}
private void initialiseSwipeRecognizer() {
SwipeRecognizer recognizer = new SwipeRecognizer(source);
registerRecognizer(recognizer);
}
private void registerRecognizer(AbstractRecognizer recognizer) {
source.addDomHandler(recognizer, TouchStartEvent.getType());
source.addDomHandler(recognizer, TouchMoveEvent.getType());
source.addDomHandler(recognizer, TouchEndEvent.getType());
source.addDomHandler(recognizer, TouchCancelEvent.getType());
}
}