com.aipo.mobycket.wicket.markup.html.form.IndicatingAjaxButton.java Source code

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Here is the source code for com.aipo.mobycket.wicket.markup.html.form.IndicatingAjaxButton.java

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/*
 * Copyright 2004-2014 Aimluck,Inc.
 *
 * Licensed 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.aipo.mobycket.wicket.markup.html.form;

import org.apache.wicket.Component;
import org.apache.wicket.Response;
import org.apache.wicket.ajax.IAjaxIndicatorAware;
import org.apache.wicket.ajax.markup.html.form.AjaxButton;
import org.apache.wicket.extensions.ajax.markup.html.AjaxIndicatorAppender;
import org.apache.wicket.markup.html.form.Form;

/**
 * 
 */
public abstract class IndicatingAjaxButton extends AjaxButton implements IAjaxIndicatorAware {

    private static final long serialVersionUID = -2238212593688080513L;

    private AjaxIndicatorAppender appender;

    private final String indicaterUrl;

    private boolean isIndicatingCenter = false;

    private String indicatingMessage;

    public IndicatingAjaxButton(String id, String indicaterUrl) {
        super(id);
        add(appender = getWicketAjaxIndicatorAppender());
        this.indicaterUrl = indicaterUrl;
    }

    public IndicatingAjaxButton(String id, Form<?> form, String indicaterUrl) {
        super(id, form);
        add(appender = getWicketAjaxIndicatorAppender());
        this.indicaterUrl = indicaterUrl;
    }

    public IndicatingAjaxButton setIndicatingCenter(boolean isIndicatingCenter) {
        this.isIndicatingCenter = isIndicatingCenter;
        return this;
    }

    public IndicatingAjaxButton setIndicatingMessage(String indicatingMessage) {
        this.indicatingMessage = indicatingMessage;
        return this;
    }

    public AjaxIndicatorAppender getWicketAjaxIndicatorAppender() {
        return new AjaxIndicatorAppender() {

            private static final long serialVersionUID = 2238212593688080513L;

            @Override
            public void onRendered(Component component) {
                final Response r = component.getResponse();

                r.write("<span style=\"display:none;");
                if (isIndicatingCenter) {
                    r.write("text-align:center;");
                }
                r.write("\" class=\"");
                r.write(getSpanClass());
                r.write("\" ");
                r.write("id=\"");
                r.write(getMarkupId());
                r.write("\">");
                if (isIndicatingCenter) {
                    r.write("<br/>");
                }
                r.write("<img src=\"");
                r.write(getIndicatorUrl());
                r.write("\" alt=\"\" align=\"absmiddle\"/>");
                if (indicatingMessage != null) {
                    r.write(indicatingMessage);
                }
                r.write("</span>");
            }

            @Override
            protected CharSequence getIndicatorUrl() {
                return indicaterUrl;
            }
        };
    }

    @Override
    public String getAjaxIndicatorMarkupId() {
        return appender.getMarkupId();
    }

}