com.googlecode.wicket.jquery.ui.form.dropdown.DropDownChoiceBehavior.java Source code

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Here is the source code for com.googlecode.wicket.jquery.ui.form.dropdown.DropDownChoiceBehavior.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.googlecode.wicket.jquery.ui.form.dropdown;

import org.apache.wicket.Component;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.util.lang.Args;

import com.googlecode.wicket.jquery.core.JQueryEvent;
import com.googlecode.wicket.jquery.core.ajax.IJQueryAjaxAware;
import com.googlecode.wicket.jquery.core.ajax.JQueryAjaxBehavior;
import com.googlecode.wicket.jquery.core.event.ISelectionChangedListener;
import com.googlecode.wicket.jquery.ui.JQueryUIBehavior;
import com.googlecode.wicket.jquery.ui.ajax.OnChangeAjaxBehavior;
import com.googlecode.wicket.jquery.ui.ajax.OnChangeAjaxBehavior.ChangeEvent;

/**
 * Provides a {@value #METHOD} behavior
 * 
 * @author Sebastien Briquet - sebfz1
 */
public class DropDownChoiceBehavior extends JQueryUIBehavior implements IJQueryAjaxAware {
    private static final long serialVersionUID = 1L;
    public static final String METHOD = "selectmenu";

    private final ISelectionChangedListener listener;
    private JQueryAjaxBehavior onChangeAjaxBehavior;

    public DropDownChoiceBehavior(String selector, ISelectionChangedListener listener) {
        this(selector, METHOD, listener);
    }

    public DropDownChoiceBehavior(String selector, String method, ISelectionChangedListener listener) {
        super(selector, method);

        this.listener = Args.notNull(listener, "listener");
    }

    @Override
    public void bind(Component component) {
        super.bind(component);

        this.onChangeAjaxBehavior = new OnChangeAjaxBehavior(this);
        component.add(this.onChangeAjaxBehavior);
    }

    @Override
    public void onConfigure(Component component) {
        super.onConfigure(component);

        this.setOption("change", this.onChangeAjaxBehavior.getCallbackFunction());
    }

    @Override
    public void onAjax(AjaxRequestTarget target, JQueryEvent event) {
        if (event instanceof ChangeEvent) {
            this.listener.onSelectionChanged(target);
        }
    }
}