001    // Copyright (c) 2011. The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry5.corelib.mixins;
016    
017    import org.apache.tapestry5.BindingConstants;
018    import org.apache.tapestry5.Field;
019    import org.apache.tapestry5.FieldFocusPriority;
020    import org.apache.tapestry5.annotations.AfterRender;
021    import org.apache.tapestry5.annotations.Environmental;
022    import org.apache.tapestry5.annotations.InjectContainer;
023    import org.apache.tapestry5.annotations.Parameter;
024    import org.apache.tapestry5.corelib.components.Form;
025    import org.apache.tapestry5.ioc.annotations.Inject;
026    import org.apache.tapestry5.services.javascript.JavaScriptSupport;
027    import org.slf4j.Logger;
028    
029    /**
030     * A mixin that let a {@link org.apache.tapestry5.Field} gain focus.
031     * <p/>
032     * This supersede {@link org.apache.tapestry5.corelib.mixins.FormFieldFocus} in 5.4
033     *
034     * @since 5.4
035     * @tapestrydoc
036     */
037    public class OverrideFieldFocus
038    {
039        @Inject
040        private Logger logger;
041    
042        /**
043         * The outer Form
044         */
045        @InjectContainer
046        private Field container;
047    
048        @Environmental
049        private JavaScriptSupport javascriptSupport;
050    
051    
052        @AfterRender
053        void focusField()
054        {
055            javascriptSupport.autofocus(FieldFocusPriority.OVERRIDE, container.getClientId());
056    
057            logger.trace("Focus OVERRIDE done on field {}", container.getClientId());
058        }
059    
060    }