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 com.google.gwt.dom.client.AnchorElement;
024    import com.google.gwt.dom.client.ButtonElement;
025    import com.google.gwt.dom.client.Element;
026    import com.google.gwt.dom.client.InputElement;
027    import com.google.gwt.user.client.ui.Focusable;
028    import com.google.gwt.user.client.ui.UIObject;
029    
030    /**
031     * @author Sven Jacobs
032     */
033    public class FocusableMixin<T extends UIObject & Focusable> implements Focusable {
034    
035        private final T uiObject;
036    
037        public FocusableMixin(final T uiObject) {
038            this.uiObject = uiObject;
039        }
040    
041        @Override
042        public int getTabIndex() {
043            return uiObject.getElement().getTabIndex();
044        }
045    
046        @Override
047        public void setTabIndex(final int index) {
048            uiObject.getElement().setTabIndex(index);
049        }
050    
051        @Override
052        public void setAccessKey(final char key) {
053            final Element element = uiObject.getElement();
054            final String accessKey = Character.toString(key);
055    
056            if (AnchorElement.is(element)) {
057                AnchorElement.as(element).setAccessKey(accessKey);
058            } else if (ButtonElement.is(element)) {
059                ButtonElement.as(element).setAccessKey(accessKey);
060            } else if (InputElement.is(element)) {
061                InputElement.as(element).setAccessKey(accessKey);
062            }
063        }
064    
065        @Override
066        public void setFocus(final boolean focused) {
067            if (focused) {
068                uiObject.getElement().focus();
069            } else {
070                uiObject.getElement().blur();
071            }
072        }
073    }