001    package org.gwtbootstrap3.client.ui.base.mixin;
002    
003    /*
004     * #%L
005     * GwtBootstrap3
006     * %%
007     * Copyright (C) 2013 GwtBootstrap3
008     * %%
009     * Licensed under the Apache License, Version 2.0 (the "License");
010     * you may not use this file except in compliance with the License.
011     * You may obtain a copy of the License at
012     * 
013     *      http://www.apache.org/licenses/LICENSE-2.0
014     * 
015     * Unless required by applicable law or agreed to in writing, software
016     * distributed under the License is distributed on an "AS IS" BASIS,
017     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018     * See the License for the specific language governing permissions and
019     * limitations under the License.
020     * #L%
021     */
022    
023    import org.gwtbootstrap3.client.ui.base.HasDataSpy;
024    import org.gwtbootstrap3.client.ui.constants.Attributes;
025    import org.gwtbootstrap3.client.ui.constants.Spy;
026    
027    import com.google.gwt.user.client.ui.UIObject;
028    
029    /**
030     * @author Sven Jacobs
031     */
032    public class DataSpyMixin<T extends UIObject & HasDataSpy> extends AbstractMixin implements HasDataSpy {
033    
034        public DataSpyMixin(final T uiObject) {
035            super(uiObject);
036        }
037    
038        @Override
039        public void setDataSpy(final Spy spy) {
040            if (spy != null) {
041                uiObject.getElement().setAttribute(Attributes.DATA_SPY, spy.getSpy());
042            } else {
043                uiObject.getElement().removeAttribute(Attributes.DATA_SPY);
044            }
045        }
046    
047        @Override
048        public Spy getDataSpy() {
049            final String spy = uiObject.getElement().getAttribute(Attributes.DATA_SPY);
050            return spy != null ? Spy.valueOf(spy) : null;
051        }
052    }