/*
* Copyright 2010 The gwtquery plugins team.
*
* 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 gwtquery.plugins.draggable.client.impl;
import com.google.gwt.dom.client.Element;
import com.google.gwt.query.client.GQuery;
import com.google.gwt.query.client.GQuery.Offset;
import gwtquery.plugins.draggable.client.DraggableHandler;
/**
* Specific code for IE8
*
* @author Julien Dramaix (julien.dramaix@gmail.com, @jdramaix)
*/
public class DraggableHandlerImplIE8 extends DraggableHandlerImplIE {
@Override
public Offset calculateRelativeHelperOffset(Element element,
DraggableHandler draggableHandler) {
// With IE8 we have to remove borderTop and borderLeft of the offsetParent (included in offsetLeft and offsetTop of the element)
Offset relativeHelperOffset = super.calculateRelativeHelperOffset(element, draggableHandler);
Element offsetParent = GQuery.$(element).offsetParent().get(0);
int offsetParentBorderLeft = (int) GQuery.$(offsetParent).cur("borderLeftWidth", true);
int offsetParentBorderTop = (int) GQuery.$(offsetParent).cur("borderTopWidth", true);
return new Offset(relativeHelperOffset.left - offsetParentBorderLeft, relativeHelperOffset.top - offsetParentBorderTop);
}
}