ShowHideOnClick.java

package com.wooki.core.mixins;

import org.apache.tapestry5.BindingConstants;
import org.apache.tapestry5.annotations.AfterRender;
import org.apache.tapestry5.annotations.Import;
import org.apache.tapestry5.annotations.InjectContainer;
import org.apache.tapestry5.annotations.Parameter;
import org.apache.tapestry5.corelib.base.AbstractLink;
import org.apache.tapestry5.ioc.annotations.Inject;
import org.apache.tapestry5.json.JSONObject;
import org.apache.tapestry5.services.javascript.JavaScriptSupport;

/**
 * This mixins implements a simple show hide effect.
 * 
 * @author ccordenier
 */
@Import(library =
{ "context:/static/js/wooki-core.js" })
public class ShowHideOnClick
{

    /**
     * This parameter is the element to display on click.
     */
    @Parameter(required = true, allowNull = false, defaultPrefix = BindingConstants.LITERAL)
    private String toShow;

    /**
     * This is the id of the element that will return to initial state on click.
     */
    @Parameter(required = true, allowNull = false, defaultPrefix = BindingConstants.LITERAL)
    private String hideLnkId;

    /**
     * Effect duration.
     */
    @Parameter(required = true, allowNull = false, value = "200")
    private int duration;

    /**
     * Reset the form on hide event.
     */
    @Parameter(defaultPrefix = BindingConstants.LITERAL)
    private String resetFormClass;

    @InjectContainer
    private AbstractLink showLnkId;

    @Inject
    private JavaScriptSupport support;

    /**
     * Generate Javascript method call.
     */
    @AfterRender
    public void initShowHideEffect()
    {

        JSONObject data = new JSONObject();
        data.put("showLnkId", this.showLnkId.getClientId());
        data.put("toShow", this.toShow);
        data.put("hideLnkId", this.hideLnkId);
        data.put("duration", this.duration);

        // Also reset form if the link is inside a form
        if (this.resetFormClass != null)
        {
            data.put("formClass", this.resetFormClass);
        }

        support.addInitializerCall("initShowHideEffect", data);
    }

}