com.wiquery.plugin.antilia.link.JqAjaxLink.java Source code

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Here is the source code for com.wiquery.plugin.antilia.link.JqAjaxLink.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.wiquery.plugin.antilia.link;

import org.apache.wicket.AttributeModifier;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.AjaxLink;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.AbstractReadOnlyModel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.Model;

import com.wiquery.plugin.antilia.menu.IMenuItem;

/**
 *   A panel containing an AJAX link styled as a jquery icon UI image.
 *
 * @author Ernesto Reinaldo Barreiro (reiern70@gmail.com)
 */
public abstract class JqAjaxLink extends Panel implements IMenuItem {

    private static final long serialVersionUID = 1L;

    private JQIcon icon;

    /**
     * Constructor.
     * 
     * @param id The id of the link.
     * @param icon The icon to be shown by the link.
     * @param title The text to be shown  as a title for the link (to be shown as the user hovers over the link).
     */
    public JqAjaxLink(String id, JQIcon icon, String title) {
        this(id, icon, new Model<String>(title));
    }

    /**
     * Constructor.
     * 
     * @param id The id of the link.
     * @param icon The icon to be shown by the link.
     * @param title The model to be used as a title for the link (to be shown as the user hovers over the link).
     */
    public JqAjaxLink(String id, JQIcon icon, IModel<String> title) {
        super(id);

        this.icon = icon;

        WebMarkupContainer parent = new WebMarkupContainer("parent");
        parent.add(new AttributeModifier("class", new AbstractReadOnlyModel<String>() {

            private static final long serialVersionUID = 1L;

            @Override
            public String getObject() {
                if (JqAjaxLink.this.isEnabled())
                    return "ui-state-default ui-corner-all";
                else
                    return "ui-state-default ui-state-disabled ui-corner-all";
            }
        }));

        add(parent);

        // we create the AJAX link.      
        AjaxLink<Void> link = newAjaxLink("link");
        parent.add(link);

        link.add(new AttributeModifier("title", title));

        link.add(new AttributeModifier("class", new AbstractReadOnlyModel<String>() {

            private static final long serialVersionUID = 1L;

            @Override
            public String getObject() {
                return "ui-icon " + getIcon().getCssName();
            }
        }));

        link.add(new AttributeModifier("onmouseover", new AbstractReadOnlyModel<String>() {

            private static final long serialVersionUID = 1L;

            @Override
            public String getObject() {
                if (JqAjaxLink.this.isEnabled())
                    return "this.parentNode.className = 'ui-state-default ui-corner-all ui-state-hover';";
                else
                    return "this.parentNode.className = 'ui-state-default ui-state-disabled ui-corner-all';";
            }
        }));

        link.add(new AttributeModifier("onmouseout", new AbstractReadOnlyModel<String>() {

            private static final long serialVersionUID = 1L;

            @Override
            public String getObject() {
                if (JqAjaxLink.this.isEnabled())
                    return "this.parentNode.className = 'ui-state-default ui-corner-all';";
                else
                    return "this.parentNode.className = 'ui-state-default ui-state-disabled ui-corner-all';";
            }
        }));
    }

    /**
     * Override this method to tune AjaxLink creation.
     * 
     * @param id The id of the link.
     * @return The AjaxLink<Void>
     */
    protected AjaxLink<Void> newAjaxLink(String id) {
        return new AjaxLink<Void>(id) {
            private static final long serialVersionUID = 1L;

            @Override
            public void onClick(AjaxRequestTarget target) {
                JqAjaxLink.this.onClick(target);
            }

            @Override
            public boolean isEnabled() {
                return JqAjaxLink.this.isEnabled();
            }
        };
    }

    /**
     * On click event handler. 
     * 
     * @param target The AjaxRequestTarget associated to the AJAX round-trip.
     */
    public abstract void onClick(AjaxRequestTarget target);

    /**
     * Gets the icon.
     * @return
     */
    public JQIcon getIcon() {
        return icon;
    }

    /**
     * Sets the icon.
     * 
     * @param icon The JQIcon to set.
     */
    public void setIcon(JQIcon icon) {
        this.icon = icon;
    }

}