001/*
002 * #%L
003 * GwtMaterial
004 * %%
005 * Copyright (C) 2015 - 2017 GwtMaterialDesign
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 * 
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 * 
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package gwt.material.design.client.base.mixin;
021
022import com.google.gwt.user.client.ui.UIObject;
023import gwt.material.design.client.base.HasScrollspy;
024import gwt.material.design.client.base.helper.StyleHelper;
025import gwt.material.design.client.constants.CssName;
026
027/**
028 * @author Ben Dol
029 */
030public class ScrollspyMixin<T extends UIObject & HasScrollspy> extends AbstractMixin<T> implements HasScrollspy {
031
032    public ScrollspyMixin(final T uiObject) {
033        super(uiObject);
034    }
035
036    @Override
037    public void setScrollspy(String scrollspy) {
038        uiObject.removeStyleName(CssName.SECTION + " " + CssName.SCROLLSPY);
039
040        if (scrollspy != null) {
041            uiObject.addStyleName(CssName.SECTION + " " + CssName.SCROLLSPY);
042            setId(scrollspy);
043        }
044    }
045
046    @Override
047    public String getScrollspy() {
048        if (StyleHelper.containsStyle(uiObject.getStyleName(), CssName.SCROLLSPY)) {
049            return getId();
050        } else {
051            return null;
052        }
053    }
054
055    @Override
056    public void setId(String id) {
057        uiObject.setId(id);
058    }
059
060    @Override
061    public String getId() {
062        return uiObject.getId();
063    }
064}