DragEvent.java

/* 
 * Copyright 2011 Vancouver Ywebb Consulting Ltd
 * 
 * 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.
 * --------
 * This class contains modified sources from gwtmobile-ui project. 
 * 
 * Copyright (c) 2010 Zhihua (Dennis) Jiang
 * 
 * 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 next.i.mobile;

import com.google.gwt.user.client.Event;

public class DragEvent {
	public enum Type {
		Start, Move, MoveHorizontal, MoveVertical, End
	};

	public final double X, Y;
	public final double OffsetX, OffsetY;
	private Event _nativeEvent;
	private boolean _stopPropagation = false;
	private Type _type;

	public DragEvent(Event nativeEvent, Type type, double x, double y, double offsetX, double offsetY) {
		_nativeEvent = nativeEvent;
		_type = type;
		X = x;
		Y = y;
		OffsetX = offsetX;
		OffsetY = offsetY;
	}

	public void stopPropagation() {
		_nativeEvent.stopPropagation();
		_stopPropagation = true;
	}

	public boolean getStopPropagation() {
		return _stopPropagation;
	}

	public Event getNativeEvent() {
		return _nativeEvent;
	}

	public void dispatch(DragEventsHandler handler) {
		if (_type == Type.Start) {
			handler.onDragStart(this);

		} else if (_type == Type.Move) {
			handler.onDragMove(this);

		} else if (_type == Type.MoveHorizontal) {
			handler.onDragMoveHorizontal(this);

		} else if (_type == Type.MoveVertical) {
			handler.onDragMoveVertical(this);

		} else if (_type == Type.End) {
			handler.onDragEnd(this);
		}
	}

}