com.gwtplatform.mvp.client.view.CenterPopupPositioner Maven / Gradle / Ivy
/*
* Copyright 2014 ArcBees Inc.
*
* 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.gwtplatform.mvp.client.view;
import com.google.gwt.user.client.Window;
/**
* Positions the popup in the center of the screen.
*/
public class CenterPopupPositioner extends PopupPositioner {
/**
* By default this method centers the popup horizontally.
* You can override this method to change the horizontal position of the popup.
* @param popupWidth the width of the popup
* @return the left position of the popup
*/
protected int getLeft(int popupWidth) {
return ((Window.getClientWidth() - popupWidth) / 2) + Window.getScrollLeft();
}
/**
* By default this method centers the popup vertically.
* You can override this method to change the vertical position of the popup.
* @param popupHeight the height of the popup
* @return the top position of the popup.
*/
protected int getTop(int popupHeight) {
return ((Window.getClientHeight() - popupHeight) / 2) + Window.getScrollTop();
}
}