/*
 * 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 org.apache.wicket.examples.compref;

import org.apache.wicket.examples.WicketExamplePage;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.OnEventHeaderItem;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.SubmitLink;
import org.apache.wicket.markup.html.panel.FeedbackPanel;


/**
 * Page with examples on {@link org.apache.wicket.markup.html.form.Form}.
 * 
 * @author Eelco Hillenius
 */
public class SubmitLinkPage extends WicketExamplePage
{
    /**
     * Constructor
     */
    public SubmitLinkPage()
    {
        // Add a FeedbackPanel for displaying our messages
        FeedbackPanel feedbackPanel = new FeedbackPanel("feedback");
        add(feedbackPanel);

        // Add a form with 2 SubmitLinks that can be called
        Form< ? > form = new Form("form")
        {
            @Override
            public void renderHead(IHeaderResponse response)
            {
                super.renderHead(response);
                response.render(OnEventHeaderItem.forComponent(this, "submit",
                    "return confirm('Do you really want to submit?')"));
            }
        };
        add(form);

        SubmitLink internal = new SubmitLink("internal")
        {
            @Override
            protected boolean shouldTriggerJavaScriptSubmitEvent()
            {
                return false;
            }
            
            @Override
            public void onSubmit()
            {
                info("internal onsubmit");
            }
        };
        form.add(internal);

        SubmitLink external = new SubmitLink("external", form)
        {
            @Override
            public void onSubmit()
            {
                info("external onsubmit");
            }
        };
        add(external);
    }

    /**
     * Override base method to provide an explanation
     */
    @Override
    protected void explain()
    {
        String html = "<form wicket:id=\"form\">\n"
            + "<a wicket:id=\"internal\">Internal SubmitLink</a>\n" + "</form>\n"
            + "<a wicket:id=\"external\">External SubmitLink</a>\n";
        String code = "&nbsp;&nbsp;&nbsp;&nbsp;public SubmitLinkPage() {\n"
            + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Add a FeedbackPanel for displaying our messages\n"
            + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FeedbackPanel feedbackPanel = new FeedbackPanel(\"feedback\");\n"
            + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;add(feedbackPanel);\n"
            + "\n"
            + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Add a form with 2 SubmitLinks that can be called\n"
            + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Form form = new Form(\"form\");\n"
            + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;add(form);\n"
            + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SubmitLink internal = new SubmitLink(\"internal\");\n"
            + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;form.add(internal);\n"
            + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SubmitLink external = new SubmitLink(\"external\", form);\n"
            + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;add(external);\n"
            + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;});\n" + "&nbsp;&nbsp;&nbsp;&nbsp;}";
        add(new ExplainPanel(html, code));

    }
}