/*
* Copyright 2010 Daniel Kurka
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.googlecode.mgwt.ui.client.widget.touch;
import com.google.gwt.core.shared.GWT;
import com.google.gwt.event.dom.client.TouchCancelHandler;
import com.google.gwt.event.dom.client.TouchEndHandler;
import com.google.gwt.event.dom.client.TouchMoveHandler;
import com.google.gwt.event.dom.client.TouchStartHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.Widget;
import com.googlecode.mgwt.dom.client.event.mouse.HandlerRegistrationCollection;
import com.googlecode.mgwt.dom.client.event.tap.HasTapHandlers;
import com.googlecode.mgwt.dom.client.event.tap.TapEvent;
import com.googlecode.mgwt.dom.client.event.tap.TapHandler;
import com.googlecode.mgwt.dom.client.event.touch.HasTouchHandlers;
import com.googlecode.mgwt.dom.client.event.touch.TouchHandler;
import com.googlecode.mgwt.dom.client.recognizer.longtap.HasLongTapHandlers;
import com.googlecode.mgwt.dom.client.recognizer.longtap.LongTapEvent;
import com.googlecode.mgwt.dom.client.recognizer.longtap.LongTapHandler;
import com.googlecode.mgwt.dom.client.recognizer.pinch.HasPinchHandlers;
import com.googlecode.mgwt.dom.client.recognizer.pinch.PinchEvent;
import com.googlecode.mgwt.dom.client.recognizer.pinch.PinchHandler;
import com.googlecode.mgwt.dom.client.recognizer.swipe.HasSwipeHandlers;
import com.googlecode.mgwt.dom.client.recognizer.swipe.SwipeEndEvent;
import com.googlecode.mgwt.dom.client.recognizer.swipe.SwipeEndHandler;
import com.googlecode.mgwt.dom.client.recognizer.swipe.SwipeMoveEvent;
import com.googlecode.mgwt.dom.client.recognizer.swipe.SwipeMoveHandler;
import com.googlecode.mgwt.dom.client.recognizer.swipe.SwipeStartEvent;
import com.googlecode.mgwt.dom.client.recognizer.swipe.SwipeStartHandler;
/**
* Base class for all widgets that support touch events Childclasses are
* responsible for setting the dom element
*
* @author Daniel Kurka
*/
public abstract class TouchWidget extends Widget implements HasTouchHandlers, HasTapHandlers, HasSwipeHandlers, HasPinchHandlers, HasLongTapHandlers {
private static final TouchWidgetImpl impl = GWT.create(TouchWidgetImpl.class);
protected final GestureUtility gestureUtility;
public TouchWidget() {
gestureUtility = new GestureUtility(this);
}
@Override
public HandlerRegistration addTouchStartHandler(TouchStartHandler handler) {
return impl.addTouchStartHandler(this, handler);
}
@Override
public HandlerRegistration addTouchMoveHandler(TouchMoveHandler handler) {
return impl.addTouchMoveHandler(this, handler);
}
@Override
public HandlerRegistration addTouchCancelHandler(TouchCancelHandler handler) {
return impl.addTouchCancelHandler(this, handler);
}
@Override
public HandlerRegistration addTouchEndHandler(TouchEndHandler handler) {
return impl.addTouchEndHandler(this, handler);
}
@Override
public HandlerRegistration addTouchHandler(TouchHandler handler) {
HandlerRegistrationCollection handlerRegistrationCollection = new HandlerRegistrationCollection();
handlerRegistrationCollection.addHandlerRegistration(addTouchCancelHandler(handler));
handlerRegistrationCollection.addHandlerRegistration(addTouchStartHandler(handler));
handlerRegistrationCollection.addHandlerRegistration(addTouchEndHandler(handler));
handlerRegistrationCollection.addHandlerRegistration(addTouchMoveHandler(handler));
return handlerRegistrationCollection;
}
@Override
public HandlerRegistration addTapHandler(TapHandler handler) {
gestureUtility.ensureTapRecognizer();
return addHandler(handler, TapEvent.getType());
}
@Override
public HandlerRegistration addSwipeStartHandler(SwipeStartHandler handler) {
gestureUtility.ensureSwipeRecognizer();
return addHandler(handler, SwipeStartEvent.getType());
}
@Override
public HandlerRegistration addSwipeMoveHandler(SwipeMoveHandler handler) {
gestureUtility.ensureSwipeRecognizer();
return addHandler(handler, SwipeMoveEvent.getType());
}
@Override
public HandlerRegistration addSwipeEndHandler(SwipeEndHandler handler) {
gestureUtility.ensureSwipeRecognizer();
return addHandler(handler, SwipeEndEvent.getType());
}
@Override
public HandlerRegistration addPinchHandler(PinchHandler handler) {
gestureUtility.ensurePinchRecognizer(this);
return addHandler(handler, PinchEvent.getType());
}
@Override
public HandlerRegistration addLongTapHandler(LongTapHandler handler) {
gestureUtility.ensureLongTapHandler();
return addHandler(handler, LongTapEvent.getType());
}
}