001    package org.gwtbootstrap3.client.ui.base.mixin;
002    
003    /*
004     * #%L
005     * GwtBootstrap3
006     * %%
007     * Copyright (C) 2013 - 2014 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.constants.Styles;
024    
025    import com.google.gwt.user.client.ui.HasEnabled;
026    import com.google.gwt.user.client.ui.UIObject;
027    
028    /**
029     * @author Joshua Godi
030     */
031    public class EnabledMixin<T extends UIObject & HasEnabled> extends AbstractMixin implements HasEnabled {
032        private static final String DISABLED = "disabled";
033    
034        public EnabledMixin(final T uiObject) {
035            super(uiObject);
036        }
037    
038        @Override
039        public void setEnabled(final boolean enabled) {
040            if (enabled) {
041                uiObject.removeStyleName(Styles.DISABLED);
042                uiObject.getElement().removeAttribute(DISABLED);
043            } else {
044                uiObject.addStyleName(Styles.DISABLED);
045                uiObject.getElement().setAttribute(DISABLED, "");
046            }
047        }
048    
049        @Override
050        public boolean isEnabled() {
051            return !uiObject.getElement().hasAttribute(DISABLED);
052        }
053    }