ro.nextreports.server.web.common.jgrowl.JGrowlAjaxBehavior.java Source code

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Here is the source code for ro.nextreports.server.web.common.jgrowl.JGrowlAjaxBehavior.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 ro.nextreports.server.web.common.jgrowl;

import java.io.Serializable;
import java.util.Iterator;

import org.apache.commons.lang.StringUtils;
import org.apache.wicket.Component;
import org.apache.wicket.Session;
import org.apache.wicket.ajax.AbstractDefaultAjaxBehavior;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.feedback.FeedbackMessage;
import org.apache.wicket.feedback.FeedbackMessages;
import org.apache.wicket.markup.head.CssHeaderItem;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.JavaScriptHeaderItem;
import org.apache.wicket.markup.head.OnDomReadyHeaderItem;
import org.apache.wicket.request.resource.PackageResourceReference;

/**
 * @author Decebal Suiu
 */
public class JGrowlAjaxBehavior extends AbstractDefaultAjaxBehavior {

    private static final long serialVersionUID = 1L;

    /**
     * Displays an info message that is sticky. The default is non-sticky. Sample usage:
     * session.getFeedbackMessages().add(new FeedbackMessage(null, "my message", JGrowlBehavior.INFO_STICKY));
     */
    public static final int INFO_FADE = 111;
    public static final int INFO_STICKY = 250;
    public static final int ERROR_STICKY = 251;

    private String afterOpenJavaScript;

    @Override
    public void renderHead(Component component, IHeaderResponse response) {
        super.renderHead(component, response);

        response.render(JavaScriptHeaderItem
                .forReference(new PackageResourceReference(JGrowlAjaxBehavior.class, "jquery.jgrowl.js")));
        response.render(CssHeaderItem
                .forReference(new PackageResourceReference(JGrowlAjaxBehavior.class, "jquery.jgrowl.css")));
        response.render(
                CssHeaderItem.forReference(new PackageResourceReference(JGrowlAjaxBehavior.class, "jgrowl.css")));

        String feedback = renderFeedback();
        if (!StringUtils.isEmpty(feedback)) {
            response.render(OnDomReadyHeaderItem.forScript(feedback));
        }
    }

    @Override
    protected void respond(AjaxRequestTarget target) {
        String feedback = renderFeedback();
        if (!StringUtils.isEmpty(feedback)) {
            target.appendJavaScript(feedback);
        }

    }

    public String getAfterOpenJavaScript() {
        return afterOpenJavaScript;
    }

    public void setAfterOpenJavaScript(String afterOpenJavaScript) {
        this.afterOpenJavaScript = afterOpenJavaScript;
    }

    private String renderFeedback() {
        //   this.getComponent().getFeedbackMessage();
        FeedbackMessages fm = Session.get().getFeedbackMessages();

        Iterator<FeedbackMessage> iter = fm.iterator();
        StringBuilder sb = new StringBuilder();
        while (iter.hasNext()) {
            FeedbackMessage message = iter.next();
            if ((message.getReporter() != null) || message.isRendered()) {
                // if a component-level message, don't show it
                continue;
            }

            // if we are info stick set to info else set to message level
            String cssClassSuffix = "";
            switch (message.getLevel()) {
            case INFO_STICKY:
            case INFO_FADE:
                cssClassSuffix = "INFO";
                break;
            case ERROR_STICKY:
                cssClassSuffix = "ERROR";
                break;
            default:
                cssClassSuffix = message.getLevelAsString();
                break;
            }
            Serializable serializable = message.getMessage();

            // grab the message, if it's null use an empty string
            String msg = (serializable == null) ? StringUtils.EMPTY : serializable.toString();

            sb.append("$.jGrowl(\"").append(escape(msg)).append('\"');
            sb.append(", {");
            // set the css style, i.e. the theme
            sb.append("theme: \'jgrowl-").append(cssClassSuffix).append("\'");
            // set afterOpen
            String afterOpen = getAfterOpenJavaScript();
            if (StringUtils.isNotEmpty(afterOpen)) {
                sb.append(", afterOpen: " + getAfterOpenJavaScript());
            }
            // set sticky
            if (message.getLevel() > FeedbackMessage.INFO) {
                sb.append(", sticky: true");
            } else {
                // default is 3000 (3sec)
                sb.append(", life: 5000");
            }

            sb.append("});");

            message.markRendered();
        }

        return sb.toString();
    }

    private String escape(String text) {
        return text.replaceAll("\n", "\\r").replaceAll("\"", "\\\\\"");
    }

}